25161166325 has 24 divisors (see below), whose sum is σ = 32456181600. Its totient is φ = 19326157760.

The previous prime is 25161166291. The next prime is 25161166361. The reversal of 25161166325 is 52366116152.

It is not a de Polignac number, because 25161166325 - 2¹⁰ = 25161165301 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32834 + ... + 226716.

It is an arithmetic number, because the mean of its divisors is an integer number (1352340900).

Almost surely, 2^25161166325 is an apocalyptic number.

25161166325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25161166325 is a deficient number, since it is larger than the sum of its proper divisors (7295015275).

25161166325 is a wasteful number, since it uses less digits than its factorization.

25161166325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194101 (or 194096 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The spelling of 25161166325 in words is "twenty-five billion, one hundred sixty-one million, one hundred sixty-six thousand, three hundred twenty-five".