56275290 has 64 divisors (see below), whose sum is σ = 150837120. Its totient is φ = 14929920.

The previous prime is 56275279. The next prime is 56275327. The reversal of 56275290 is 9257265.

56275290 is a `hidden beast` number, since 5 + 627 + 5 + 29 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68985 + ... + 69795.

It is an arithmetic number, because the mean of its divisors is an integer number (2356830).

Almost surely, 2^56275290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56275290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75418560).

56275290 is an abundant number, since it is smaller than the sum of its proper divisors (94561830).

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

56275290 is a wasteful number, since it uses less digits than its factorization.

56275290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 1078 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 56275290 is about 7501.6858105362. The cubic root of 56275290 is about 383.2121297134.

It can be divided in two parts, 56275 and 290, that added together give a palindrome (56565).

The spelling of 56275290 in words is "fifty-six million, two hundred seventy-five thousand, two hundred ninety".