55547560 has 32 divisors (see below), whose sum is σ = 126748800. Its totient is φ = 21904960.

The previous prime is 55547549. The next prime is 55547563. The reversal of 55547560 is 6574555.

It is not an unprimeable number, because it can be changed into a prime (55547563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6940 + ... + 12619.

It is an arithmetic number, because the mean of its divisors is an integer number (3960900).

Almost surely, 2^55547560 is an apocalyptic number.

It is an amenable number.

55547560 is an abundant number, since it is smaller than the sum of its proper divisors (71201240).

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

55547560 is a wasteful number, since it uses less digits than its factorization.

55547560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19641 (or 19637 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 37.

The square root of 55547560 is about 7453.0235475275. The cubic root of 55547560 is about 381.5531080536.

The spelling of 55547560 in words is "fifty-five million, five hundred forty-seven thousand, five hundred sixty".