56526820 has 48 divisors (see below), whose sum is σ = 137547648. Its totient is φ = 19111680.

The previous prime is 56526797. The next prime is 56526913. The reversal of 56526820 is 2862565.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7455 + ... + 12985.

It is an arithmetic number, because the mean of its divisors is an integer number (2865576).

Almost surely, 2^56526820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56526820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68773824).

56526820 is an abundant number, since it is smaller than the sum of its proper divisors (81020828).

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

56526820 is a wasteful number, since it uses less digits than its factorization.

56526820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5620 (or 5618 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 56526820 is about 7518.4320173823. The cubic root of 56526820 is about 383.7822206250.

The spelling of 56526820 in words is "fifty-six million, five hundred twenty-six thousand, eight hundred twenty".