55719700 has 18 divisors (see below), whose sum is σ = 120911966. Its totient is φ = 22287840.

The previous prime is 55719691. The next prime is 55719707. The reversal of 55719700 is 791755.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 633616 + 55086084 = 796^2 + 7422^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55719707) 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, 278499 + ... + 278698.

Almost surely, 2^55719700 is an apocalyptic number.

55719700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55719700 is an abundant number, since it is smaller than the sum of its proper divisors (65192266).

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

55719700 is a wasteful number, since it uses less digits than its factorization.

55719700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557211 (or 557204 counting only the distinct ones).

The product of its (nonzero) digits is 11025, while the sum is 34.

The square root of 55719700 is about 7464.5629476882. The cubic root of 55719700 is about 381.9468416476.

The spelling of 55719700 in words is "fifty-five million, seven hundred nineteen thousand, seven hundred".