56012620 has 24 divisors (see below), whose sum is σ = 124546464. Its totient is φ = 21086976.

The previous prime is 56012611. The next prime is 56012623. The reversal of 56012620 is 2621065.

It is a junction number, because it is equal to n+sod(n) for n = 56012591 and 56012600.

It is not an unprimeable number, because it can be changed into a prime (56012623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82032 + ... + 82711.

It is an arithmetic number, because the mean of its divisors is an integer number (5189436).

Almost surely, 2^56012620 is an apocalyptic number.

It is an amenable number.

56012620 is an abundant number, since it is smaller than the sum of its proper divisors (68533844).

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

56012620 is a wasteful number, since it uses less digits than its factorization.

56012620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164769 (or 164767 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 56012620 is about 7484.1579352657. The cubic root of 56012620 is about 382.6149739096.

Adding to 56012620 its reverse (2621065), we get a palindrome (58633685).

The spelling of 56012620 in words is "fifty-six million, twelve thousand, six hundred twenty".