25166254379 has 16 divisors (see below), whose sum is σ = 30459883008. Its totient is φ = 20325235392.

The previous prime is 25166254363. The next prime is 25166254397. The reversal of 25166254379 is 97345266152.

It is not a de Polignac number, because 25166254379 - 2⁴ = 25166254363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25166254349) 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, 1155722 + ... + 1177295.

It is an arithmetic number, because the mean of its divisors is an integer number (1903742688).

Almost surely, 2^25166254379 is an apocalyptic number.

25166254379 is a deficient number, since it is larger than the sum of its proper divisors (5293628629).

25166254379 is a wasteful number, since it uses less digits than its factorization.

25166254379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333114.

The product of its digits is 2721600, while the sum is 50.

The spelling of 25166254379 in words is "twenty-five billion, one hundred sixty-six million, two hundred fifty-four thousand, three hundred seventy-nine".