56407528 has 8 divisors (see below), whose sum is σ = 105764130. Its totient is φ = 28203760.

The previous prime is 56407517. The next prime is 56407541. The reversal of 56407528 is 82570465.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 30008484 + 26399044 = 5478^2 + 5138^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3525463 + ... + 3525478.

Almost surely, 2^56407528 is an apocalyptic number.

It is an amenable number.

56407528 is a deficient number, since it is larger than the sum of its proper divisors (49356602).

56407528 is a wasteful number, since it uses less digits than its factorization.

56407528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7050947 (or 7050943 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 56407528 is about 7510.4945243306. The cubic root of 56407528 is about 383.5120574700.

The spelling of 56407528 in words is "fifty-six million, four hundred seven thousand, five hundred twenty-eight".