56803290 has 64 divisors (see below), whose sum is σ = 145649664. Its totient is φ = 14128128.

The previous prime is 56803283. The next prime is 56803321. The reversal of 56803290 is 9230865.

It is a happy number.

It is a super-2 number, since 2×56803290² = 6453227509648200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64332 + ... + 65208.

It is an arithmetic number, because the mean of its divisors is an integer number (2275776).

Almost surely, 2^56803290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56803290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72824832).

56803290 is an abundant number, since it is smaller than the sum of its proper divisors (88846374).

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

56803290 is a wasteful number, since it uses less digits than its factorization.

56803290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 56803290 is about 7536.7957382431. The cubic root of 56803290 is about 384.4068902089.

The spelling of 56803290 in words is "fifty-six million, eight hundred three thousand, two hundred ninety".