56475756 has 18 divisors (see below), whose sum is σ = 142758252. Its totient is φ = 18825240.

The previous prime is 56475721. The next prime is 56475761. The reversal of 56475756 is 65757465.

56475756 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×56475756² = 6379022031543072, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 784350 + ... + 784421.

It is an arithmetic number, because the mean of its divisors is an integer number (7931014).

Almost surely, 2^56475756 is an apocalyptic number.

It is an amenable number.

56475756 is an abundant number, since it is smaller than the sum of its proper divisors (86282496).

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

56475756 is a wasteful number, since it uses less digits than its factorization.

56475756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568781 (or 1568776 counting only the distinct ones).

The product of its digits is 882000, while the sum is 45.

The square root of 56475756 is about 7515.0353292583. The cubic root of 56475756 is about 383.6666214607. Note that the first 4 decimals are identical.

The spelling of 56475756 in words is "fifty-six million, four hundred seventy-five thousand, seven hundred fifty-six".