56145945 has 16 divisors (see below), whose sum is σ = 90522432. Its totient is φ = 29714880.

The previous prime is 56145941. The next prime is 56145959. The reversal of 56145945 is 54954165.

It is not a de Polignac number, because 56145945 - 2² = 56145941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56145941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12322 + ... + 16251.

It is an arithmetic number, because the mean of its divisors is an integer number (5657652).

Almost surely, 2^56145945 is an apocalyptic number.

It is an amenable number.

56145945 is a deficient number, since it is larger than the sum of its proper divisors (34376487).

56145945 is a wasteful number, since it uses less digits than its factorization.

56145945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28712.

The product of its digits is 108000, while the sum is 39.

The square root of 56145945 is about 7493.0597888980. The cubic root of 56145945 is about 382.9183086501.

The spelling of 56145945 in words is "fifty-six million, one hundred forty-five thousand, nine hundred forty-five".