2525794391 has 2 divisors, whose sum is σ = 2525794392. Its totient is φ = 2525794390.

The previous prime is 2525794361. The next prime is 2525794483. The reversal of 2525794391 is 1934975252.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2525794391 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2525794361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262897195 + 1262897196.

It is an arithmetic number, because the mean of its divisors is an integer number (1262897196).

Almost surely, 2^2525794391 is an apocalyptic number.

2525794391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2525794391 is an equidigital number, since it uses as much as digits as its factorization.

2525794391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 47.

The square root of 2525794391 is about 50257.2819698797. The cubic root of 2525794391 is about 1361.8606292960.

The spelling of 2525794391 in words is "two billion, five hundred twenty-five million, seven hundred ninety-four thousand, three hundred ninety-one".