55516837432 has 16 divisors (see below), whose sum is σ = 118964651760. Its totient is φ = 23792930304.

The previous prime is 55516837427. The next prime is 55516837433. The reversal of 55516837432 is 23473861555.

It is a happy number.

It is a super-2 number, since 2×55516837432² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55516837433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495685993 + ... + 495686104.

It is an arithmetic number, because the mean of its divisors is an integer number (7435290735).

Almost surely, 2^55516837432 is an apocalyptic number.

It is an amenable number.

55516837432 is an abundant number, since it is smaller than the sum of its proper divisors (63447814328).

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

55516837432 is a wasteful number, since it uses less digits than its factorization.

55516837432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991372110 (or 991372106 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 49.

The spelling of 55516837432 in words is "fifty-five billion, five hundred sixteen million, eight hundred thirty-seven thousand, four hundred thirty-two".