56405298 has 16 divisors (see below), whose sum is σ = 114723360. Its totient is φ = 18482976.

The previous prime is 56405287. The next prime is 56405317. The reversal of 56405298 is 89250465.

It is a Curzon 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, 79315 + ... + 80022.

It is an arithmetic number, because the mean of its divisors is an integer number (7170210).

Almost surely, 2^56405298 is an apocalyptic number.

56405298 is an abundant number, since it is smaller than the sum of its proper divisors (58318062).

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

56405298 is a wasteful number, since it uses less digits than its factorization.

56405298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159401.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 56405298 is about 7510.3460639307. The cubic root of 56405298 is about 383.5070035160.

The spelling of 56405298 in words is "fifty-six million, four hundred five thousand, two hundred ninety-eight".