55513132515 has 24 divisors (see below), whose sum is σ = 99786571248. Its totient is φ = 29607003360.

The previous prime is 55513132501. The next prime is 55513132529. The reversal of 55513132515 is 51523131555.

55513132515 is a `hidden beast` number, since 5 + 5 + 5 + 1 + 3 + 132 + 515 = 666.

It is an interprime number because it is at equal distance from previous prime (55513132501) and next prime (55513132529).

It is not a de Polignac number, because 55513132515 - 2¹⁶ = 55513066979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55513132515.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22843696 + ... + 22846125.

It is an arithmetic number, because the mean of its divisors is an integer number (4157773802).

Almost surely, 2^55513132515 is an apocalyptic number.

55513132515 is a deficient number, since it is larger than the sum of its proper divisors (44273438733).

55513132515 is an equidigital number, since it uses as much as digits as its factorization.

55513132515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45689841 (or 45689829 counting only the distinct ones).

The product of its digits is 56250, while the sum is 36.

The spelling of 55513132515 in words is "fifty-five billion, five hundred thirteen million, one hundred thirty-two thousand, five hundred fifteen".