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55262081 = 729272227
BaseRepresentation
bin1101001011001…
…1101110000001
310211222121022202
43102303232001
5103121341311
65252242545
71240501640
oct322635601
9124877282
1055262081
1129215246
1216610455
13b5ab574
1474a7357
154cb8e3b
hex34b3b81

55262081 has 8 divisors (see below), whose sum is σ = 65334720. Its totient is φ = 45733968.

The previous prime is 55262063. The next prime is 55262099. The reversal of 55262081 is 18026255.

55262081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55262063) and next prime (55262099).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-55262081 is a prime.

It is a super-2 number, since 2×552620812 = 6107795192901122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55262021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135911 + ... + 136316.

It is an arithmetic number, because the mean of its divisors is an integer number (8166840).

Almost surely, 255262081 is an apocalyptic number.

It is an amenable number.

55262081 is a deficient number, since it is larger than the sum of its proper divisors (10072639).

55262081 is a wasteful number, since it uses less digits than its factorization.

55262081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272263.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 55262081 is about 7433.8469852426. The cubic root of 55262081 is about 380.8983385990.

The spelling of 55262081 in words is "fifty-five million, two hundred sixty-two thousand, eighty-one".

Divisors: 1 7 29 203 272227 1905589 7894583 55262081