2525918439 has 24 divisors (see below), whose sum is σ = 3762616816. Its totient is φ = 1505750400.

The previous prime is 2525918411. The next prime is 2525918453. The reversal of 2525918439 is 9348195252.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2525918439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525917439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34894 + ... + 79179.

Almost surely, 2^2525918439 is an apocalyptic number.

2525918439 is a deficient number, since it is larger than the sum of its proper divisors (1236698377).

2525918439 is a wasteful number, since it uses less digits than its factorization.

2525918439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114159 (or 114148 counting only the distinct ones).

The product of its digits is 777600, while the sum is 48.

The square root of 2525918439 is about 50258.5160843414. The cubic root of 2525918439 is about 1361.8829237106.

The spelling of 2525918439 in words is "two billion, five hundred twenty-five million, nine hundred eighteen thousand, four hundred thirty-nine".