25170051 has 16 divisors (see below), whose sum is σ = 34550784. Its totient is φ = 16290624.

The previous prime is 25170037. The next prime is 25170097. The reversal of 25170051 is 15007152.

It is not a de Polignac number, because 25170051 - 2⁹ = 25169539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25170151) 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, 18666 + ... + 19968.

It is an arithmetic number, because the mean of its divisors is an integer number (2159424).

Almost surely, 2^25170051 is an apocalyptic number.

25170051 is a deficient number, since it is larger than the sum of its proper divisors (9380733).

25170051 is a wasteful number, since it uses less digits than its factorization.

25170051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 25170051 is about 5016.9762805897. The cubic root of 25170051 is about 293.0632524665.

The spelling of 25170051 in words is "twenty-five million, one hundred seventy thousand, fifty-one".