2257004521 has 2 divisors, whose sum is σ = 2257004522. Its totient is φ = 2257004520.

The previous prime is 2257004447. The next prime is 2257004539. The reversal of 2257004521 is 1254007522.

2257004521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2020952025 + 236052496 = 44955^2 + 15364^2 .

It is a cyclic number.

It is not a de Polignac number, because 2257004521 - 2²⁹ = 1720133609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2257004521.

It is not a weakly prime, because it can be changed into another prime (2257004621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128502260 + 1128502261.

It is an arithmetic number, because the mean of its divisors is an integer number (1128502261).

Almost surely, 2^2257004521 is an apocalyptic number.

It is an amenable number.

2257004521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2257004521 is an equidigital number, since it uses as much as digits as its factorization.

2257004521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 2257004521 is about 47507.9416624210. The cubic root of 2257004521 is about 1311.7290690885.

The spelling of 2257004521 in words is "two billion, two hundred fifty-seven million, four thousand, five hundred twenty-one".