25485642 has 48 divisors (see below), whose sum is σ = 67966080. Its totient is φ = 6721056.

The previous prime is 25485623. The next prime is 25485667. The reversal of 25485642 is 24658452.

It is a happy number.

25485642 is a `hidden beast` number, since 2 + 5 + 4 + 8 + 5 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25485597 and 25485606.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6142 + ... + 9417.

It is an arithmetic number, because the mean of its divisors is an integer number (1415960).

Almost surely, 2^25485642 is an apocalyptic number.

25485642 is an abundant number, since it is smaller than the sum of its proper divisors (42480438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25485642 is a wasteful number, since it uses less digits than its factorization.

25485642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15587 (or 15584 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 25485642 is about 5048.3306151638. The cubic root of 25485642 is about 294.2830122200.

The spelling of 25485642 in words is "twenty-five million, four hundred eighty-five thousand, six hundred forty-two".