2552521257 has 96 divisors (see below), whose sum is σ = 4495510656. Its totient is φ = 1386253440.

The previous prime is 2552521247. The next prime is 2552521259. The reversal of 2552521257 is 7521252552.

2552521257 is a `hidden beast` number, since 2 + 5 + 525 + 2 + 125 + 7 = 666.

It is not a de Polignac number, because 2552521257 - 2⁶ = 2552521193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2552521259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5761678 + ... + 5762120.

It is an arithmetic number, because the mean of its divisors is an integer number (46828236).

Almost surely, 2^2552521257 is an apocalyptic number.

It is an amenable number.

2552521257 is a deficient number, since it is larger than the sum of its proper divisors (1942989399).

2552521257 is a wasteful number, since it uses less digits than its factorization.

2552521257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 507 counting only the distinct ones).

The product of its digits is 70000, while the sum is 36.

The square root of 2552521257 is about 50522.4826884032. The cubic root of 2552521257 is about 1366.6473256500.

The spelling of 2552521257 in words is "two billion, five hundred fifty-two million, five hundred twenty-one thousand, two hundred fifty-seven".