55502500 has 45 divisors (see below), whose sum is σ = 122192917. Its totient is φ = 22052000.

The previous prime is 55502471. The next prime is 55502507. The reversal of 55502500 is 520555.

The square root of 55502500 is 7450.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 55264356 + 238144 = 7434^2 + 488^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55502507) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 372426 + ... + 372574.

Almost surely, 2^55502500 is an apocalyptic number.

55502500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55502500 is the 7450-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55502500

55502500 is an abundant number, since it is smaller than the sum of its proper divisors (66690417).

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

55502500 is an equidigital number, since it uses as much as digits as its factorization.

55502500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 22.

The cubic root of 55502500 is about 381.4499085968.

The spelling of 55502500 in words is "fifty-five million, five hundred two thousand, five hundred".