56640175 has 12 divisors (see below), whose sum is σ = 74365776. Its totient is φ = 42646400.

The previous prime is 56640163. The next prime is 56640187. The reversal of 56640175 is 57104665.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56640163) and next prime (56640187).

It is not a de Polignac number, because 56640175 - 2⁹ = 56639663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56640175.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66211 + ... + 67060.

It is an arithmetic number, because the mean of its divisors is an integer number (6197148).

Almost surely, 2^56640175 is an apocalyptic number.

56640175 is a deficient number, since it is larger than the sum of its proper divisors (17725601).

56640175 is a wasteful number, since it uses less digits than its factorization.

56640175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133298 (or 133293 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 56640175 is about 7525.9667153131. The cubic root of 56640175 is about 384.0385861652.

The spelling of 56640175 in words is "fifty-six million, six hundred forty thousand, one hundred seventy-five".