2517172256 has 24 divisors (see below), whose sum is σ = 5171148864. Its totient is φ = 1203864640.

The previous prime is 2517172253. The next prime is 2517172261. The reversal of 2517172256 is 6522717152.

It is a super-2 number, since 2×2517172256² = 12672312332752259072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2517172253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1709300 + ... + 1710771.

It is an arithmetic number, because the mean of its divisors is an integer number (215464536).

Almost surely, 2^2517172256 is an apocalyptic number.

It is an amenable number.

2517172256 is an abundant number, since it is smaller than the sum of its proper divisors (2653976608).

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

2517172256 is a wasteful number, since it uses less digits than its factorization.

2517172256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3420104 (or 3420096 counting only the distinct ones).

The product of its digits is 58800, while the sum is 38.

The square root of 2517172256 is about 50171.4286820696. The cubic root of 2517172256 is about 1360.3092318741.

The spelling of 2517172256 in words is "two billion, five hundred seventeen million, one hundred seventy-two thousand, two hundred fifty-six".