55574586 has 56 divisors (see below), whose sum is σ = 127802304. Its totient is φ = 18108360.

The previous prime is 55574567. The next prime is 55574587. The reversal of 55574586 is 68547555.

It is not an unprimeable number, because it can be changed into a prime (55574587) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 68121 + ... + 68931.

It is an arithmetic number, because the mean of its divisors is an integer number (2282184).

Almost surely, 2^55574586 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55574586, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63901152).

55574586 is an abundant number, since it is smaller than the sum of its proper divisors (72227718).

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

55574586 is an equidigital number, since it uses as much as digits as its factorization.

55574586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878 (or 863 counting only the distinct ones).

The product of its digits is 840000, while the sum is 45.

The square root of 55574586 is about 7454.8364167163. The cubic root of 55574586 is about 381.6149780522.

The spelling of 55574586 in words is "fifty-five million, five hundred seventy-four thousand, five hundred eighty-six".