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55704797 = 68381559
BaseRepresentation
bin1101010001111…
…1110011011101
310212211002121122
43110133303131
5103230023142
65305540325
71244324441
oct324376335
9125732548
1055704797
1129497925
12167a46a5
13b704c25
147580821
154d551d2
hex351fcdd

55704797 has 4 divisors (see below), whose sum is σ = 55787040. Its totient is φ = 55622556.

The previous prime is 55704787. The next prime is 55704829. The reversal of 55704797 is 79740755.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55704797 - 220 = 54656221 is a prime.

It is a super-2 number, since 2×557047972 = 6206048817622418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55704707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40097 + ... + 41462.

It is an arithmetic number, because the mean of its divisors is an integer number (13946760).

Almost surely, 255704797 is an apocalyptic number.

It is an amenable number.

55704797 is a deficient number, since it is larger than the sum of its proper divisors (82243).

55704797 is an equidigital number, since it uses as much as digits as its factorization.

55704797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82242.

The product of its (nonzero) digits is 308700, while the sum is 44.

The square root of 55704797 is about 7463.5646309254. The cubic root of 55704797 is about 381.9127862995.

The spelling of 55704797 in words is "fifty-five million, seven hundred four thousand, seven hundred ninety-seven".

Divisors: 1 683 81559 55704797