55783004 has 24 divisors (see below), whose sum is σ = 102359040. Its totient is φ = 26549424.

The previous prime is 55782973. The next prime is 55783019. The reversal of 55783004 is 40038755.

It is a happy number.

It is a super-2 number, since 2×55783004² = 6223487070528032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19157 + ... + 21875.

It is an arithmetic number, because the mean of its divisors is an integer number (4264960).

Almost surely, 2^55783004 is an apocalyptic number.

It is an amenable number.

55783004 is a deficient number, since it is larger than the sum of its proper divisors (46576036).

55783004 is a wasteful number, since it uses less digits than its factorization.

55783004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969 (or 2967 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 55783004 is about 7468.8020458438. The cubic root of 55783004 is about 382.0914321128.

The spelling of 55783004 in words is "fifty-five million, seven hundred eighty-three thousand, four".