2497560557 has 2 divisors, whose sum is σ = 2497560558. Its totient is φ = 2497560556.

The previous prime is 2497560523. The next prime is 2497560577. The reversal of 2497560557 is 7550657942.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2414641321 + 82919236 = 49139^2 + 9106^2 .

It is a cyclic number.

It is not a de Polignac number, because 2497560557 - 2¹² = 2497556461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2497560577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1248780278 + 1248780279.

It is an arithmetic number, because the mean of its divisors is an integer number (1248780279).

Almost surely, 2^2497560557 is an apocalyptic number.

It is an amenable number.

2497560557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2497560557 is an equidigital number, since it uses as much as digits as its factorization.

2497560557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646000, while the sum is 50.

The square root of 2497560557 is about 49975.5996162127. The cubic root of 2497560557 is about 1356.7672201655.

The spelling of 2497560557 in words is "two billion, four hundred ninety-seven million, five hundred sixty thousand, five hundred fifty-seven".