55256697 has 12 divisors (see below), whose sum is σ = 79910064. Its totient is φ = 36794040.

The previous prime is 55256689. The next prime is 55256711. The reversal of 55256697 is 79665255.

55256697 is a `hidden beast` number, since 552 + 5 + 6 + 6 + 97 = 666.

It is not a de Polignac number, because 55256697 - 2³ = 55256689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55256657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5578 + ... + 11900.

It is an arithmetic number, because the mean of its divisors is an integer number (6659172).

Almost surely, 2^55256697 is an apocalyptic number.

It is an amenable number.

55256697 is a deficient number, since it is larger than the sum of its proper divisors (24653367).

55256697 is a wasteful number, since it uses less digits than its factorization.

55256697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7300 (or 7297 counting only the distinct ones).

The product of its digits is 567000, while the sum is 45.

The square root of 55256697 is about 7433.4848489790. The cubic root of 55256697 is about 380.8859683129.

The spelling of 55256697 in words is "fifty-five million, two hundred fifty-six thousand, six hundred ninety-seven".