2557988501 has 2 divisors, whose sum is σ = 2557988502. Its totient is φ = 2557988500.

The previous prime is 2557988437. The next prime is 2557988507. The reversal of 2557988501 is 1058897552.

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., 2357199601 + 200788900 = 48551^2 + 14170^2 .

It is a cyclic number.

It is not a de Polignac number, because 2557988501 - 2⁶ = 2557988437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2557988501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2557988507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278994250 + 1278994251.

It is an arithmetic number, because the mean of its divisors is an integer number (1278994251).

Almost surely, 2^2557988501 is an apocalyptic number.

It is an amenable number.

2557988501 is a deficient number, since it is larger than the sum of its proper divisors (1).

2557988501 is an equidigital number, since it uses as much as digits as its factorization.

2557988501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008000, while the sum is 50.

The square root of 2557988501 is about 50576.5607865936. The cubic root of 2557988501 is about 1367.6223702389.

The spelling of 2557988501 in words is "two billion, five hundred fifty-seven million, nine hundred eighty-eight thousand, five hundred one".