56120553 has 16 divisors (see below), whose sum is σ = 88032960. Its totient is φ = 35212608.

The previous prime is 56120551. The next prime is 56120567. The reversal of 56120553 is 35502165.

56120553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56120553 - 2¹ = 56120551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (56120551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60675 + ... + 61592.

It is an arithmetic number, because the mean of its divisors is an integer number (5502060).

Almost surely, 2^56120553 is an apocalyptic number.

It is an amenable number.

56120553 is a deficient number, since it is larger than the sum of its proper divisors (31912407).

56120553 is a wasteful number, since it uses less digits than its factorization.

56120553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122293 (or 122287 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 56120553 is about 7491.3652293824. The cubic root of 56120553 is about 382.8605750191.

The spelling of 56120553 in words is "fifty-six million, one hundred twenty thousand, five hundred fifty-three".