55825500 has 48 divisors (see below), whose sum is σ = 162568224. Its totient is φ = 14886400.

The previous prime is 55825499. The next prime is 55825507. The reversal of 55825500 is 552855.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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 (55825507) 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, 17109 + ... + 20108.

It is an arithmetic number, because the mean of its divisors is an integer number (3386838).

Almost surely, 2^55825500 is an apocalyptic number.

55825500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55825500 is an abundant number, since it is smaller than the sum of its proper divisors (106742724).

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

55825500 is a wasteful number, since it uses less digits than its factorization.

55825500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37239 (or 37227 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 55825500 is about 7471.6464049097. The cubic root of 55825500 is about 382.1884343944.

The spelling of 55825500 in words is "fifty-five million, eight hundred twenty-five thousand, five hundred".