55983128 has 8 divisors (see below), whose sum is σ = 104968380. Its totient is φ = 27991560.

The previous prime is 55983107. The next prime is 55983131. The reversal of 55983128 is 82138955.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×55983128² = 6268221241328768, 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 as a sum of consecutive naturals, namely, 3498938 + ... + 3498953.

Almost surely, 2^55983128 is an apocalyptic number.

It is an amenable number.

55983128 is a deficient number, since it is larger than the sum of its proper divisors (48985252).

55983128 is a wasteful number, since it uses less digits than its factorization.

55983128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6997897 (or 6997893 counting only the distinct ones).

The product of its digits is 86400, while the sum is 41.

The square root of 55983128 is about 7482.1873807063. The cubic root of 55983128 is about 382.5478101059.

The spelling of 55983128 in words is "fifty-five million, nine hundred eighty-three thousand, one hundred twenty-eight".