55562900 has 36 divisors (see below), whose sum is σ = 123838428. Its totient is φ = 21623040.

The previous prime is 55562873. The next prime is 55562909. The reversal of 55562900 is 926555.

It can be written as a sum of positive squares in 6 ways, for example, as 784 + 55562116 = 28^2 + 7454^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55562909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3809 + ... + 11208.

Almost surely, 2^55562900 is an apocalyptic number.

55562900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55562900 is an abundant number, since it is smaller than the sum of its proper divisors (68275528).

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

55562900 is a wasteful number, since it uses less digits than its factorization.

55562900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15068 (or 15061 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 55562900 is about 7454.0525890283. The cubic root of 55562900 is about 381.5882280239.

The spelling of 55562900 in words is "fifty-five million, five hundred sixty-two thousand, nine hundred".