56540312 has 32 divisors (see below), whose sum is σ = 109226880. Its totient is φ = 27421440.

The previous prime is 56540293. The next prime is 56540321. The reversal of 56540312 is 21304565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72758 + ... + 73530.

It is an arithmetic number, because the mean of its divisors is an integer number (3413340).

Almost surely, 2^56540312 is an apocalyptic number.

It is an amenable number.

56540312 is a deficient number, since it is larger than the sum of its proper divisors (52686568).

56540312 is a wasteful number, since it uses less digits than its factorization.

56540312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 56540312 is about 7519.3292254030. The cubic root of 56540312 is about 383.8127523137.

Adding to 56540312 its reverse (21304565), we get a palindrome (77844877).

The spelling of 56540312 in words is "fifty-six million, five hundred forty thousand, three hundred twelve".