55582000 has 40 divisors (see below), whose sum is σ = 134402112. Its totient is φ = 22232000.

The previous prime is 55581997. The next prime is 55582057. The reversal of 55582000 is 28555.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 11896 + ... + 15895.

Almost surely, 2^55582000 is an apocalyptic number.

55582000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55582000 is an abundant number, since it is smaller than the sum of its proper divisors (78820112).

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

55582000 is a wasteful number, since it uses less digits than its factorization.

55582000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27814 (or 27798 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 55582000 is about 7455.3336612120. Note that the first 3 decimals coincide. The cubic root of 55582000 is about 381.6319472453.

The spelling of 55582000 in words is "fifty-five million, five hundred eighty-two thousand".