25642412 has 12 divisors (see below), whose sum is σ = 45272136. Its totient is φ = 12707520.

The previous prime is 25642399. The next prime is 25642417. The reversal of 25642412 is 21424652.

It is not an unprimeable number, because it can be changed into a prime (25642417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27914 + ... + 28817.

It is an arithmetic number, because the mean of its divisors is an integer number (3772678).

Almost surely, 2^25642412 is an apocalyptic number.

It is an amenable number.

25642412 is a deficient number, since it is larger than the sum of its proper divisors (19629724).

25642412 is a wasteful number, since it uses less digits than its factorization.

25642412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56848 (or 56846 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 25642412 is about 5063.8337255483. The cubic root of 25642412 is about 294.8851875343.

The spelling of 25642412 in words is "twenty-five million, six hundred forty-two thousand, four hundred twelve".