5515152531 has 32 divisors (see below), whose sum is σ = 8485441536. Its totient is φ = 3121092000.

The previous prime is 5515152527. The next prime is 5515152551. The reversal of 5515152531 is 1352515155.

It is not a de Polignac number, because 5515152531 - 2² = 5515152527 is a prime.

It is a super-2 number, since 2×5515152531² = 60833814880391411922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5515152492 and 5515152501.

It is not an unprimeable number, because it can be changed into a prime (5515152521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1569066 + ... + 1572576.

It is an arithmetic number, because the mean of its divisors is an integer number (265170048).

Almost surely, 2^5515152531 is an apocalyptic number.

5515152531 is a deficient number, since it is larger than the sum of its proper divisors (2970289005).

5515152531 is a wasteful number, since it uses less digits than its factorization.

5515152531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4223.

The product of its digits is 18750, while the sum is 33.

The square root of 5515152531 is about 74264.0729491724. The cubic root of 5515152531 is about 1766.7937028898.

Adding to 5515152531 its reverse (1352515155), we get a palindrome (6867667686).

The spelling of 5515152531 in words is "five billion, five hundred fifteen million, one hundred fifty-two thousand, five hundred thirty-one".