56153620 has 24 divisors (see below), whose sum is σ = 118155744. Its totient is φ = 22417056.

The previous prime is 56153609. The next prime is 56153623. The reversal of 56153620 is 2635165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56153623) 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, 8767 + ... + 13753.

It is an arithmetic number, because the mean of its divisors is an integer number (4923156).

Almost surely, 2^56153620 is an apocalyptic number.

It is an amenable number.

56153620 is an abundant number, since it is smaller than the sum of its proper divisors (62002124).

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

56153620 is a wasteful number, since it uses less digits than its factorization.

56153620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5559 (or 5557 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 56153620 is about 7493.5719119790. The cubic root of 56153620 is about 382.9357558235.

Adding to 56153620 its reverse (2635165), we get a palindrome (58788785).

The spelling of 56153620 in words is "fifty-six million, one hundred fifty-three thousand, six hundred twenty".