25258042 has 4 divisors (see below), whose sum is σ = 37887066. Its totient is φ = 12629020.

The previous prime is 25258027. The next prime is 25258067. The reversal of 25258042 is 24085252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 24413481 + 844561 = 4941^2 + 919^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25258042.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6314509 + ... + 6314512.

Almost surely, 2^25258042 is an apocalyptic number.

25258042 is a deficient number, since it is larger than the sum of its proper divisors (12629024).

25258042 is a wasteful number, since it uses less digits than its factorization.

25258042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12629023.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 25258042 is about 5025.7379557633. The cubic root of 25258042 is about 293.4043580884.

The spelling of 25258042 in words is "twenty-five million, two hundred fifty-eight thousand, forty-two".