55516237 has 16 divisors (see below), whose sum is σ = 69500160. Its totient is φ = 43239168.

The previous prime is 55516231. The next prime is 55516261. The reversal of 55516237 is 73261555.

It is not a de Polignac number, because 55516237 - 2¹⁹ = 54991949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55516231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4593 + ... + 11494.

It is an arithmetic number, because the mean of its divisors is an integer number (4343760).

Almost surely, 2^55516237 is an apocalyptic number.

It is an amenable number.

55516237 is a deficient number, since it is larger than the sum of its proper divisors (13983923).

55516237 is a wasteful number, since it uses less digits than its factorization.

55516237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16140.

The product of its digits is 31500, while the sum is 34.

The square root of 55516237 is about 7450.9218892698. The cubic root of 55516237 is about 381.4813759190.

The spelling of 55516237 in words is "fifty-five million, five hundred sixteen thousand, two hundred thirty-seven".