2547515256 has 64 divisors (see below), whose sum is σ = 7482222720. Its totient is φ = 712590720.

The previous prime is 2547515251. The next prime is 2547515261. The reversal of 2547515256 is 6525157452.

It is an interprime number because it is at equal distance from previous prime (2547515251) and next prime (2547515261).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2547515251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367710 + ... + 374573.

It is an arithmetic number, because the mean of its divisors is an integer number (116909730).

Almost surely, 2^2547515256 is an apocalyptic number.

2547515256 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2547515256 is an abundant number, since it is smaller than the sum of its proper divisors (4934707464).

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

2547515256 is a wasteful number, since it uses less digits than its factorization.

2547515256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742316 (or 742312 counting only the distinct ones).

The product of its digits is 420000, while the sum is 42.

The square root of 2547515256 is about 50472.9160639644. The cubic root of 2547515256 is about 1365.7533187001.

The spelling of 2547515256 in words is "two billion, five hundred forty-seven million, five hundred fifteen thousand, two hundred fifty-six".