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55395901 = 1118772683
BaseRepresentation
bin1101001101010…
…0011000111101
310212020101220001
43103110120331
5103140132101
65255154301
71241600041
oct323243075
9125211801
1055395901
11292a6840
1216675991
13b627452
147500021
154ce3901
hex34d463d

55395901 has 8 divisors (see below), whose sum is σ = 60486624. Its totient is φ = 50314320.

The previous prime is 55395889. The next prime is 55395913. The reversal of 55395901 is 10959355.

It is an interprime number because it is at equal distance from previous prime (55395889) and next prime (55395913).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55395901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55395931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19306 + ... + 21988.

It is an arithmetic number, because the mean of its divisors is an integer number (7560828).

Almost surely, 255395901 is an apocalyptic number.

It is an amenable number.

55395901 is a deficient number, since it is larger than the sum of its proper divisors (5090723).

55395901 is a wasteful number, since it uses less digits than its factorization.

55395901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4571.

The product of its (nonzero) digits is 30375, while the sum is 37.

The square root of 55395901 is about 7442.8422662314. The cubic root of 55395901 is about 381.2055457977.

The spelling of 55395901 in words is "fifty-five million, three hundred ninety-five thousand, nine hundred one".

Divisors: 1 11 1877 2683 20647 29513 5035991 55395901