55719500 has 24 divisors (see below), whose sum is σ = 121692480. Its totient is φ = 22287600.

The previous prime is 55719491. The next prime is 55719539. The reversal of 55719500 is 591755.

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, 55220 + ... + 56219.

It is an arithmetic number, because the mean of its divisors is an integer number (5070520).

Almost surely, 2^55719500 is an apocalyptic number.

55719500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55719500 is an abundant number, since it is smaller than the sum of its proper divisors (65972980).

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

55719500 is a wasteful number, since it uses less digits than its factorization.

55719500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111458 (or 111446 counting only the distinct ones).

The product of its (nonzero) digits is 7875, while the sum is 32.

The square root of 55719500 is about 7464.5495510446. The cubic root of 55719500 is about 381.9463846611.

The spelling of 55719500 in words is "fifty-five million, seven hundred nineteen thousand, five hundred".