56255645 has 4 divisors (see below), whose sum is σ = 67506780. Its totient is φ = 45004512.

The previous prime is 56255627. The next prime is 56255671. The reversal of 56255645 is 54655265.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42133081 + 14122564 = 6491^2 + 3758^2 .

It is a cyclic number.

It is not a de Polignac number, because 56255645 - 2¹⁶ = 56190109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56255599 and 56255608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5625560 + ... + 5625569.

It is an arithmetic number, because the mean of its divisors is an integer number (16876695).

Almost surely, 2^56255645 is an apocalyptic number.

It is an amenable number.

56255645 is a deficient number, since it is larger than the sum of its proper divisors (11251135).

56255645 is a wasteful number, since it uses less digits than its factorization.

56255645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11251134.

The product of its digits is 180000, while the sum is 38.

The square root of 56255645 is about 7500.3763238920. The cubic root of 56255645 is about 383.1675330028.

The spelling of 56255645 in words is "fifty-six million, two hundred fifty-five thousand, six hundred forty-five".