56745132 has 12 divisors (see below), whose sum is σ = 132405336. Its totient is φ = 18915040.

The previous prime is 56745131. The next prime is 56745149. The reversal of 56745132 is 23154765.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 56745093 and 56745102.

It is not an unprimeable number, because it can be changed into a prime (56745131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2364369 + ... + 2364392.

It is an arithmetic number, because the mean of its divisors is an integer number (11033778).

Almost surely, 2^56745132 is an apocalyptic number.

It is an amenable number.

56745132 is an abundant number, since it is smaller than the sum of its proper divisors (75660204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56745132 is a wasteful number, since it uses less digits than its factorization.

56745132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4728768 (or 4728766 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 56745132 is about 7532.9364792224. The cubic root of 56745132 is about 384.2756538544.

Adding to 56745132 its reverse (23154765), we get a palindrome (79899897).

The spelling of 56745132 in words is "fifty-six million, seven hundred forty-five thousand, one hundred thirty-two".