2557086499901 has 2 divisors, whose sum is σ = 2557086499902. Its totient is φ = 2557086499900.

The previous prime is 2557086499853. The next prime is 2557086499973. The reversal of 2557086499901 is 1099946807552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2529976548100 + 27109951801 = 1590590^2 + 164651^2 .

It is a cyclic number.

It is not a de Polignac number, because 2557086499901 - 2¹⁸ = 2557086237757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2557086499001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278543249950 + 1278543249951.

It is an arithmetic number, because the mean of its divisors is an integer number (1278543249951).

Almost surely, 2^{2557086499901} is an apocalyptic number.

It is an amenable number.

2557086499901 is a deficient number, since it is larger than the sum of its proper divisors (1).

2557086499901 is an equidigital number, since it uses as much as digits as its factorization.

2557086499901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48988800, while the sum is 65.

The spelling of 2557086499901 in words is "two trillion, five hundred fifty-seven billion, eighty-six million, four hundred ninety-nine thousand, nine hundred one".