55400700 has 36 divisors (see below), whose sum is σ = 160293560. Its totient is φ = 14773440.

The previous prime is 55400699. The next prime is 55400743. The reversal of 55400700 is 700455.

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, 92035 + ... + 92634.

Almost surely, 2^55400700 is an apocalyptic number.

55400700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55400700 is an abundant number, since it is smaller than the sum of its proper divisors (104892860).

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

55400700 is a wasteful number, since it uses less digits than its factorization.

55400700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184686 (or 184679 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 55400700 is about 7443.1646495291. The cubic root of 55400700 is about 381.2165535471.

The spelling of 55400700 in words is "fifty-five million, four hundred thousand, seven hundred".