56538480 has 40 divisors (see below), whose sum is σ = 175270032. Its totient is φ = 15076864.

The previous prime is 56538463. The next prime is 56538511. The reversal of 56538480 is 8483565.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117549 + ... + 118028.

Almost surely, 2^56538480 is an apocalyptic number.

It is an amenable number.

56538480 is an abundant number, since it is smaller than the sum of its proper divisors (118731552).

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

56538480 is a wasteful number, since it uses less digits than its factorization.

56538480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235593 (or 235587 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 56538480 is about 7519.2074050394. The cubic root of 56538480 is about 383.8086068787.

The spelling of 56538480 in words is "fifty-six million, five hundred thirty-eight thousand, four hundred eighty".