56371645 has 8 divisors (see below), whose sum is σ = 73795680. Its totient is φ = 40997520.

The previous prime is 56371631. The next prime is 56371649. The reversal of 56371645 is 54617365.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56371645 - 2⁷ = 56371517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56371649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512415 + ... + 512524.

It is an arithmetic number, because the mean of its divisors is an integer number (9224460).

Almost surely, 2^56371645 is an apocalyptic number.

56371645 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56371645 is a deficient number, since it is larger than the sum of its proper divisors (17424035).

56371645 is a wasteful number, since it uses less digits than its factorization.

56371645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024955.

The product of its digits is 75600, while the sum is 37.

The square root of 56371645 is about 7508.1052869549. The cubic root of 56371645 is about 383.4307179588.

The spelling of 56371645 in words is "fifty-six million, three hundred seventy-one thousand, six hundred forty-five".