25541945 has 32 divisors (see below), whose sum is σ = 36408960. Its totient is φ = 16957440.

The previous prime is 25541933. The next prime is 25541963. The reversal of 25541945 is 54914552.

It is a happy number.

It is not a de Polignac number, because 25541945 - 2⁶ = 25541881 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99257 + ... + 99513.

It is an arithmetic number, because the mean of its divisors is an integer number (1137780).

Almost surely, 2^25541945 is an apocalyptic number.

It is an amenable number.

25541945 is a deficient number, since it is larger than the sum of its proper divisors (10867015).

25541945 is a wasteful number, since it uses less digits than its factorization.

25541945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425.

The product of its digits is 36000, while the sum is 35.

The square root of 25541945 is about 5053.9039365623. The cubic root of 25541945 is about 294.4995633005.

The spelling of 25541945 in words is "twenty-five million, five hundred forty-one thousand, nine hundred forty-five".