55574532 has 96 divisors (see below), whose sum is σ = 162005760. Its totient is φ = 16346880.

The previous prime is 55574507. The next prime is 55574567. The reversal of 55574532 is 23547555.

55574532 is a `hidden beast` number, since 5 + 55 + 74 + 532 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31432 + ... + 33152.

It is an arithmetic number, because the mean of its divisors is an integer number (1687560).

Almost surely, 2^55574532 is an apocalyptic number.

55574532 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55574532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81002880).

55574532 is an abundant number, since it is smaller than the sum of its proper divisors (106431228).

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

55574532 is a wasteful number, since it uses less digits than its factorization.

55574532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770 (or 1762 counting only the distinct ones).

The product of its digits is 105000, while the sum is 36.

The square root of 55574532 is about 7454.8327949056. The cubic root of 55574532 is about 381.6148544512.

The spelling of 55574532 in words is "fifty-five million, five hundred seventy-four thousand, five hundred thirty-two".