2513271256 has 8 divisors (see below), whose sum is σ = 4712383620. Its totient is φ = 1256635624.

The previous prime is 2513271253. The next prime is 2513271263. The reversal of 2513271256 is 6521723152.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2513271251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157079446 + ... + 157079461.

Almost surely, 2^2513271256 is an apocalyptic number.

It is an amenable number.

2513271256 is a deficient number, since it is larger than the sum of its proper divisors (2199112364).

2513271256 is a wasteful number, since it uses less digits than its factorization.

2513271256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314158913 (or 314158909 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 2513271256 is about 50132.5368997022. The cubic root of 2513271256 is about 1359.6061532567.

The spelling of 2513271256 in words is "two billion, five hundred thirteen million, two hundred seventy-one thousand, two hundred fifty-six".