56641554 has 48 divisors (see below), whose sum is σ = 125379072. Its totient is φ = 18477504.

The previous prime is 56641531. The next prime is 56641573. The reversal of 56641554 is 45514665.

56641554 is a `hidden beast` number, since 5 + 6 + 641 + 5 + 5 + 4 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 253887 + ... + 254109.

It is an arithmetic number, because the mean of its divisors is an integer number (2612064).

Almost surely, 2^56641554 is an apocalyptic number.

56641554 is an abundant number, since it is smaller than the sum of its proper divisors (68737518).

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

56641554 is a wasteful number, since it uses less digits than its factorization.

56641554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 468 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 56641554 is about 7526.0583308927. The cubic root of 56641554 is about 384.0417028276.

The spelling of 56641554 in words is "fifty-six million, six hundred forty-one thousand, five hundred fifty-four".