25161392498 has 32 divisors (see below), whose sum is σ = 41606345088. Its totient is φ = 11316816000.

The previous prime is 25161392491. The next prime is 25161392533. The reversal of 25161392498 is 89429316152.

It is not an unprimeable number, because it can be changed into a prime (25161392491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5812811 + ... + 5817137.

It is an arithmetic number, because the mean of its divisors is an integer number (1300198284).

Almost surely, 2^25161392498 is an apocalyptic number.

25161392498 is a deficient number, since it is larger than the sum of its proper divisors (16444952590).

25161392498 is a wasteful number, since it uses less digits than its factorization.

25161392498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7058.

The product of its digits is 933120, while the sum is 50.

The spelling of 25161392498 in words is "twenty-five billion, one hundred sixty-one million, three hundred ninety-two thousand, four hundred ninety-eight".