25232158885 has 4 divisors (see below), whose sum is σ = 30278590668. Its totient is φ = 20185727104.

The previous prime is 25232158873. The next prime is 25232158907. The reversal of 25232158885 is 58885123252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13578308676 + 11653850209 = 116526^2 + 107953^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25232158885 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2523215884 + ... + 2523215893.

It is an arithmetic number, because the mean of its divisors is an integer number (7569647667).

Almost surely, 2^25232158885 is an apocalyptic number.

It is an amenable number.

25232158885 is a deficient number, since it is larger than the sum of its proper divisors (5046431783).

25232158885 is an equidigital number, since it uses as much as digits as its factorization.

25232158885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5046431782.

The product of its digits is 1536000, while the sum is 49.

The spelling of 25232158885 in words is "twenty-five billion, two hundred thirty-two million, one hundred fifty-eight thousand, eight hundred eighty-five".