56645205 has 32 divisors (see below), whose sum is σ = 95475456. Its totient is φ = 28621824.

The previous prime is 56645201. The next prime is 56645209. The reversal of 56645205 is 50254665.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56645201) and next prime (56645209).

It is not a de Polignac number, because 56645205 - 2² = 56645201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56645201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38259 + ... + 39711.

It is an arithmetic number, because the mean of its divisors is an integer number (2983608).

Almost surely, 2^56645205 is an apocalyptic number.

It is an amenable number.

56645205 is a deficient number, since it is larger than the sum of its proper divisors (38830251).

56645205 is a wasteful number, since it uses less digits than its factorization.

56645205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 56645205 is about 7526.3008842326. The cubic root of 56645205 is about 384.0499541675.

The spelling of 56645205 in words is "fifty-six million, six hundred forty-five thousand, two hundred five".