25204142 has 4 divisors (see below), whose sum is σ = 37806216. Its totient is φ = 12602070.

The previous prime is 25204133. The next prime is 25204181. The reversal of 25204142 is 24140252.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6301034 + ... + 6301037.

It is an arithmetic number, because the mean of its divisors is an integer number (9451554).

Almost surely, 2^25204142 is an apocalyptic number.

25204142 is a deficient number, since it is larger than the sum of its proper divisors (12602074).

25204142 is a wasteful number, since it uses less digits than its factorization.

25204142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12602073.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 25204142 is about 5020.3726953285. The cubic root of 25204142 is about 293.1955037164.

Adding to 25204142 its reverse (24140252), we get a palindrome (49344394).

The spelling of 25204142 in words is "twenty-five million, two hundred four thousand, one hundred forty-two".