55512152531 has 16 divisors (see below), whose sum is σ = 61161665760. Its totient is φ = 49964113920.

The previous prime is 55512152497. The next prime is 55512152587. The reversal of 55512152531 is 13525121555.

It is a cyclic number.

It is not a de Polignac number, because 55512152531 - 2¹⁰ = 55512151507 is a prime.

It is a super-2 number, since 2×55512152531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55512152491 and 55512152500.

It is not an unprimeable number, because it can be changed into a prime (55512152231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1130711 + ... + 1178783.

It is an arithmetic number, because the mean of its divisors is an integer number (3822604110).

Almost surely, 2^55512152531 is an apocalyptic number.

55512152531 is a deficient number, since it is larger than the sum of its proper divisors (5649513229).

55512152531 is a wasteful number, since it uses less digits than its factorization.

55512152531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49126.

The product of its digits is 37500, while the sum is 35.

The spelling of 55512152531 in words is "fifty-five billion, five hundred twelve million, one hundred fifty-two thousand, five hundred thirty-one".