55616012431 has 48 divisors (see below), whose sum is σ = 74057760000. Its totient is φ = 40656363264.

The previous prime is 55616012429. The next prime is 55616012453. The reversal of 55616012431 is 13421061655.

55616012431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55616012431 - 2¹ = 55616012429 is a prime.

It is a super-2 number, since 2×55616012431² (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 (55616012731) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1172820 + ... + 1219318.

It is an arithmetic number, because the mean of its divisors is an integer number (1542870000).

Almost surely, 2^55616012431 is an apocalyptic number.

55616012431 is a deficient number, since it is larger than the sum of its proper divisors (18441747569).

55616012431 is a wasteful number, since it uses less digits than its factorization.

55616012431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46588 (or 46565 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 55616012431 in words is "fifty-five billion, six hundred sixteen million, twelve thousand, four hundred thirty-one".