55787100 has 36 divisors (see below), whose sum is σ = 161411544. Its totient is φ = 14876480.

The previous prime is 55787099. The next prime is 55787113. The reversal of 55787100 is 178755.

It is a super-2 number, since 2×55787100² = 6224401052820000, which contains 22 as substring.

It is a congruent number.

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, 92679 + ... + 93278.

It is an arithmetic number, because the mean of its divisors is an integer number (4483654).

Almost surely, 2^55787100 is an apocalyptic number.

55787100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55787100 is an abundant number, since it is smaller than the sum of its proper divisors (105624444).

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

55787100 is a wasteful number, since it uses less digits than its factorization.

55787100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185974 (or 185967 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 33.

The square root of 55787100 is about 7469.0762481046. The cubic root of 55787100 is about 382.1007838752.

The spelling of 55787100 in words is "fifty-five million, seven hundred eighty-seven thousand, one hundred".