25673745 has 32 divisors (see below), whose sum is σ = 42594048. Its totient is φ = 13195008.

The previous prime is 25673737. The next prime is 25673789. The reversal of 25673745 is 54737652.

It is not a de Polignac number, because 25673745 - 2³ = 25673737 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, 92547 + ... + 92823.

It is an arithmetic number, because the mean of its divisors is an integer number (1331064).

Almost surely, 2^25673745 is an apocalyptic number.

It is an amenable number.

25673745 is a deficient number, since it is larger than the sum of its proper divisors (16920303).

25673745 is a wasteful number, since it uses less digits than its factorization.

25673745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489.

The product of its digits is 176400, while the sum is 39.

The square root of 25673745 is about 5066.9265832455. The cubic root of 25673745 is about 295.0052474409.

The spelling of 25673745 in words is "twenty-five million, six hundred seventy-three thousand, seven hundred forty-five".