55783532 has 12 divisors (see below), whose sum is σ = 111567120. Its totient is φ = 23907216.

The previous prime is 55783517. The next prime is 55783543. The reversal of 55783532 is 23538755.

55783532 is an admirable number.

It is a super-2 number, since 2×55783532² = 6223604884790048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 996107 + ... + 996162.

It is an arithmetic number, because the mean of its divisors is an integer number (9297260).

Almost surely, 2^55783532 is an apocalyptic number.

It is an amenable number.

55783532 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55783532 is a wasteful number, since it uses less digits than its factorization.

55783532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992280 (or 1992278 counting only the distinct ones).

The product of its digits is 126000, while the sum is 38.

The square root of 55783532 is about 7468.8373927941. The cubic root of 55783532 is about 382.0926376391.

The spelling of 55783532 in words is "fifty-five million, seven hundred eighty-three thousand, five hundred thirty-two".