657368055 has 40 divisors (see below), whose sum is σ = 1195042464. Its totient is φ = 345643200.

The previous prime is 657368009. The next prime is 657368069. The reversal of 657368055 is 550863756.

It is not a de Polignac number, because 657368055 - 2¹⁰ = 657367031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 657368055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17325 + ... + 40185.

Almost surely, 2^657368055 is an apocalyptic number.

657368055 is a deficient number, since it is larger than the sum of its proper divisors (537674409).

657368055 is a wasteful number, since it uses less digits than its factorization.

657368055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22949 (or 22940 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The square root of 657368055 is about 25639.1898272937. The cubic root of 657368055 is about 869.4998909325.

The spelling of 657368055 in words is "six hundred fifty-seven million, three hundred sixty-eight thousand, fifty-five".