25120945 has 16 divisors (see below), whose sum is σ = 33114240. Its totient is φ = 18209664.

The previous prime is 25120939. The next prime is 25120957. The reversal of 25120945 is 54902152.

It is a cyclic number.

It is not a de Polignac number, because 25120945 - 2³ = 25120937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3564 + ... + 7933.

It is an arithmetic number, because the mean of its divisors is an integer number (2069640).

Almost surely, 2^25120945 is an apocalyptic number.

It is an amenable number.

25120945 is a deficient number, since it is larger than the sum of its proper divisors (7993295).

25120945 is a wasteful number, since it uses less digits than its factorization.

25120945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11544.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 25120945 is about 5012.0799075833. The cubic root of 25120945 is about 292.8725425742.

The spelling of 25120945 in words is "twenty-five million, one hundred twenty thousand, nine hundred forty-five".