5515063631 has 12 divisors (see below), whose sum is σ = 6998708520. Its totient is φ = 4297451760.

The previous prime is 5515063607. The next prime is 5515063637. The reversal of 5515063631 is 1363605155.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-5515063631 is a prime.

It is a super-2 number, since 2×5515063631² = 60831853707957808322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5515063591 and 5515063600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515063637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5115476 + ... + 5116553.

It is an arithmetic number, because the mean of its divisors is an integer number (583225710).

Almost surely, 2^5515063631 is an apocalyptic number.

5515063631 is a deficient number, since it is larger than the sum of its proper divisors (1483644889).

5515063631 is a wasteful number, since it uses less digits than its factorization.

5515063631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10232054 (or 10232047 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 5515063631 is about 74263.4744070058. The cubic root of 5515063631 is about 1766.7842097221.

Adding to 5515063631 its reverse (1363605155), we get a palindrome (6878668786).

The spelling of 5515063631 in words is "five billion, five hundred fifteen million, sixty-three thousand, six hundred thirty-one".