56256551 has 24 divisors (see below), whose sum is σ = 65300256. Its totient is φ = 48322560.

The previous prime is 56256527. The next prime is 56256581. The reversal of 56256551 is 15565265.

56256551 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 56256551 - 2¹⁰ = 56255527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56256521) 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 23 ways as a sum of consecutive naturals, for example, 159191 + ... + 159543.

It is an arithmetic number, because the mean of its divisors is an integer number (2720844).

Almost surely, 2^56256551 is an apocalyptic number.

56256551 is a deficient number, since it is larger than the sum of its proper divisors (9043705).

56256551 is a wasteful number, since it uses less digits than its factorization.

56256551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 430 counting only the distinct ones).

The product of its digits is 45000, while the sum is 35.

The square root of 56256551 is about 7500.4367206183. The cubic root of 56256551 is about 383.1695899693.

The spelling of 56256551 in words is "fifty-six million, two hundred fifty-six thousand, five hundred fifty-one".