55589716 has 36 divisors (see below), whose sum is σ = 121875348. Its totient is φ = 21990528.

The previous prime is 55589713. The next prime is 55589717. The reversal of 55589716 is 61798555.

It can be written as a sum of positive squares in 2 ways, for example, as 21996100 + 33593616 = 4690^2 + 5796^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55589713) 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, 8361 + ... + 13456.

Almost surely, 2^55589716 is an apocalyptic number.

It is an amenable number.

55589716 is an abundant number, since it is smaller than the sum of its proper divisors (66285632).

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

55589716 is a wasteful number, since it uses less digits than its factorization.

55589716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21848 (or 21839 counting only the distinct ones).

The product of its digits is 378000, while the sum is 46.

The square root of 55589716 is about 7455.8511251231. The cubic root of 55589716 is about 381.6496060548.

The spelling of 55589716 in words is "fifty-five million, five hundred eighty-nine thousand, seven hundred sixteen".