2533172256 has 72 divisors (see below), whose sum is σ = 7208605404. Its totient is φ = 843816960.

The previous prime is 2533172251. The next prime is 2533172263. The reversal of 2533172256 is 6522713352.

2533172256 is a `hidden beast` number, since 2 + 5 + 331 + 72 + 256 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2062976400 + 470195856 = 45420^2 + 21684^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2533172256.

It is not an unprimeable number, because it can be changed into a prime (2533172251) 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, 752016 + ... + 755376.

Almost surely, 2^2533172256 is an apocalyptic number.

It is an amenable number.

2533172256 is an abundant number, since it is smaller than the sum of its proper divisors (4675433148).

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

2533172256 is a wasteful number, since it uses less digits than its factorization.

2533172256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5994 (or 5983 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 2533172256 is about 50330.6294019854. The cubic root of 2533172256 is about 1363.1853421191.

The spelling of 2533172256 in words is "two billion, five hundred thirty-three million, one hundred seventy-two thousand, two hundred fifty-six".