56291028 has 24 divisors (see below), whose sum is σ = 137057088. Its totient is φ = 17947776.

The previous prime is 56291003. The next prime is 56291041. The reversal of 56291028 is 82019265.

It is a self number, because there is not a number n which added to its sum of digits gives 56291028.

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, 101701 + ... + 102252.

It is an arithmetic number, because the mean of its divisors is an integer number (5710712).

Almost surely, 2^56291028 is an apocalyptic number.

It is an amenable number.

56291028 is an abundant number, since it is smaller than the sum of its proper divisors (80766060).

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

56291028 is a wasteful number, since it uses less digits than its factorization.

56291028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203983 (or 203981 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 56291028 is about 7502.7347014272. The cubic root of 56291028 is about 383.2478495375.

The spelling of 56291028 in words is "fifty-six million, two hundred ninety-one thousand, twenty-eight".