55463580 has 72 divisors (see below), whose sum is σ = 175567392. Its totient is φ = 14146176.

The previous prime is 55463549. The next prime is 55463581. The reversal of 55463580 is 8536455.

55463580 is a `hidden beast` number, since 5 + 546 + 35 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55463581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2559 + ... + 10838.

It is an arithmetic number, because the mean of its divisors is an integer number (2438436).

Almost surely, 2^55463580 is an apocalyptic number.

It is an amenable number.

55463580 is an abundant number, since it is smaller than the sum of its proper divisors (120103812).

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

55463580 is a wasteful number, since it uses less digits than its factorization.

55463580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13435 (or 13430 counting only the distinct ones).

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

The square root of 55463580 is about 7447.3874613854. The cubic root of 55463580 is about 381.3607264161.

The spelling of 55463580 in words is "fifty-five million, four hundred sixty-three thousand, five hundred eighty".