25258242 has 32 divisors (see below), whose sum is σ = 52462080. Its totient is φ = 8098560.

The previous prime is 25258229. The next prime is 25258267. The reversal of 25258242 is 24285252.

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, 42298 + ... + 42890.

It is an arithmetic number, because the mean of its divisors is an integer number (1639440).

Almost surely, 2^25258242 is an apocalyptic number.

25258242 is an abundant number, since it is smaller than the sum of its proper divisors (27203838).

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

25258242 is a wasteful number, since it uses less digits than its factorization.

25258242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858.

The product of its digits is 12800, while the sum is 30.

The square root of 25258242 is about 5025.7578532993. The cubic root of 25258242 is about 293.4051325046.

The spelling of 25258242 in words is "twenty-five million, two hundred fifty-eight thousand, two hundred forty-two".