56469820 has 48 divisors (see below), whose sum is σ = 129967488. Its totient is φ = 20439360.

The previous prime is 56469799. The next prime is 56469821. The reversal of 56469820 is 2896465.

It is a happy number.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56469821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61807 + ... + 62713.

It is an arithmetic number, because the mean of its divisors is an integer number (2707656).

Almost surely, 2^56469820 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 56469820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64983744).

56469820 is an abundant number, since it is smaller than the sum of its proper divisors (73497668).

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

56469820 is a wasteful number, since it uses less digits than its factorization.

56469820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210 (or 1208 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 56469820 is about 7514.6403772902. The cubic root of 56469820 is about 383.6531789677.

The spelling of 56469820 in words is "fifty-six million, four hundred sixty-nine thousand, eight hundred twenty".