55604500 has 48 divisors (see below), whose sum is σ = 138797568. Its totient is φ = 19063200.

The previous prime is 55604477. The next prime is 55604503. The reversal of 55604500 is 540655.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55604503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4444 + ... + 11443.

It is an arithmetic number, because the mean of its divisors is an integer number (2891616).

Almost surely, 2^55604500 is an apocalyptic number.

55604500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55604500 is an abundant number, since it is smaller than the sum of its proper divisors (83193068).

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

55604500 is a wasteful number, since it uses less digits than its factorization.

55604500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15913 (or 15901 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55604500 is about 7456.8424953193. The cubic root of 55604500 is about 381.6834360991.

The spelling of 55604500 in words is "fifty-five million, six hundred four thousand, five hundred".