55983000 has 64 divisors (see below), whose sum is σ = 174676320. Its totient is φ = 14928000.

The previous prime is 55982977. The next prime is 55983001. The reversal of 55983000 is 38955.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55983001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6331 + ... + 12330.

Almost surely, 2^55983000 is an apocalyptic number.

55983000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55983000 is an abundant number, since it is smaller than the sum of its proper divisors (118693320).

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

55983000 is a wasteful number, since it uses less digits than its factorization.

55983000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18685 (or 18671 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 55983000 is about 7482.1788270530. The cubic root of 55983000 is about 382.5475185529.

The spelling of 55983000 in words is "fifty-five million, nine hundred eighty-three thousand".