55551700 has 36 divisors (see below), whose sum is σ = 123360160. Its totient is φ = 21702240.

The previous prime is 55551673. The next prime is 55551701. The reversal of 55551700 is 715555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55551701) 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, 2160 + ... + 10759.

Almost surely, 2^55551700 is an apocalyptic number.

55551700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55551700 is an abundant number, since it is smaller than the sum of its proper divisors (67808460).

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

55551700 is a wasteful number, since it uses less digits than its factorization.

55551700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12976 (or 12969 counting only the distinct ones).

The product of its (nonzero) digits is 4375, while the sum is 28.

The square root of 55551700 is about 7453.3012819824. The cubic root of 55551700 is about 381.5625869615.

The spelling of 55551700 in words is "fifty-five million, five hundred fifty-one thousand, seven hundred".