5515122256 has 20 divisors (see below), whose sum is σ = 12212056672. Its totient is φ = 2363623776.

The previous prime is 5515122253. The next prime is 5515122373. The reversal of 5515122256 is 6522215155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515122253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24620970 + ... + 24621193.

Almost surely, 2^5515122256 is an apocalyptic number.

5515122256 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

5515122256 is an abundant number, since it is smaller than the sum of its proper divisors (6696934416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5515122256 is a wasteful number, since it uses less digits than its factorization.

5515122256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49242178 (or 49242172 counting only the distinct ones).

The product of its digits is 30000, while the sum is 34.

The square root of 5515122256 is about 74263.8691154723. The cubic root of 5515122256 is about 1766.7904699918.

The spelling of 5515122256 in words is "five billion, five hundred fifteen million, one hundred twenty-two thousand, two hundred fifty-six".