55761400 has 24 divisors (see below), whose sum is σ = 129645720. Its totient is φ = 22304480.

The previous prime is 55761383. The next prime is 55761401. The reversal of 55761400 is 416755.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55761401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139204 + ... + 139603.

It is an arithmetic number, because the mean of its divisors is an integer number (5401905).

Almost surely, 2^55761400 is an apocalyptic number.

55761400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55761400 is an abundant number, since it is smaller than the sum of its proper divisors (73884320).

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

55761400 is a wasteful number, since it uses less digits than its factorization.

55761400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278823 (or 278814 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 55761400 is about 7467.3556229766. The cubic root of 55761400 is about 382.0420994691.

The spelling of 55761400 in words is "fifty-five million, seven hundred sixty-one thousand, four hundred".