2500530779 has 2 divisors, whose sum is σ = 2500530780. Its totient is φ = 2500530778.

The previous prime is 2500530749. The next prime is 2500530787. The reversal of 2500530779 is 9770350052.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2500530779 is a prime.

It is not a weakly prime, because it can be changed into another prime (2500530709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250265389 + 1250265390.

It is an arithmetic number, because the mean of its divisors is an integer number (1250265390).

Almost surely, 2^2500530779 is an apocalyptic number.

2500530779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2500530779 is an equidigital number, since it uses as much as digits as its factorization.

2500530779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 66150, while the sum is 38.

The square root of 2500530779 is about 50005.3075083036. The cubic root of 2500530779 is about 1357.3048518919.

The spelling of 2500530779 in words is "two billion, five hundred million, five hundred thirty thousand, seven hundred seventy-nine".