55373900 has 36 divisors (see below), whose sum is σ = 120961008. Its totient is φ = 22002240.

The previous prime is 55373887. The next prime is 55373917. The reversal of 55373900 is 937355.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13937 + ... + 17463.

It is an arithmetic number, because the mean of its divisors is an integer number (3360028).

Almost surely, 2^55373900 is an apocalyptic number.

55373900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55373900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60480504).

55373900 is an abundant number, since it is smaller than the sum of its proper divisors (65587108).

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

55373900 is a wasteful number, since it uses less digits than its factorization.

55373900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3698 (or 3691 counting only the distinct ones).

The product of its (nonzero) digits is 14175, while the sum is 32.

The square root of 55373900 is about 7441.3641222561. The cubic root of 55373900 is about 381.1550726663.

The spelling of 55373900 in words is "fifty-five million, three hundred seventy-three thousand, nine hundred".