2555570761 has 2 divisors, whose sum is σ = 2555570762. Its totient is φ = 2555570760.

The previous prime is 2555570701. The next prime is 2555570803. The reversal of 2555570761 is 1670755552.

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., 2554291600 + 1279161 = 50540^2 + 1131^2 .

It is a cyclic number.

It is not a de Polignac number, because 2555570761 - 2¹⁵ = 2555537993 is a prime.

It is not a weakly prime, because it can be changed into another prime (2555570701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277785380 + 1277785381.

It is an arithmetic number, because the mean of its divisors is an integer number (1277785381).

Almost surely, 2^2555570761 is an apocalyptic number.

It is an amenable number.

2555570761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555570761 is an equidigital number, since it uses as much as digits as its factorization.

2555570761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367500, while the sum is 43.

The square root of 2555570761 is about 50552.6533527173. The cubic root of 2555570761 is about 1367.1913547997.

The spelling of 2555570761 in words is "two billion, five hundred fifty-five million, five hundred seventy thousand, seven hundred sixty-one".