25165270 has 64 divisors (see below), whose sum is σ = 52799040. Its totient is φ = 8552448.

The previous prime is 25165241. The next prime is 25165279. The reversal of 25165270 is 7256152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25165279) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130294 + ... + 130486.

It is an arithmetic number, because the mean of its divisors is an integer number (824985).

Almost surely, 2^25165270 is an apocalyptic number.

25165270 is an abundant number, since it is smaller than the sum of its proper divisors (27633770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25165270 is a wasteful number, since it uses less digits than its factorization.

25165270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 25165270 is about 5016.4997757401. The cubic root of 25165270 is about 293.0446957019.

The spelling of 25165270 in words is "twenty-five million, one hundred sixty-five thousand, two hundred seventy".