25204242 has 16 divisors (see below), whose sum is σ = 57609792. Its totient is φ = 7201200.

The previous prime is 25204237. The next prime is 25204259. The reversal of 25204242 is 24240252.

It is a Harshad number since it is a multiple of its sum of digits (21).

25204242 is a modest number, since divided by 4242 gives 2520 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300009 + ... + 300092.

It is an arithmetic number, because the mean of its divisors is an integer number (3600612).

Almost surely, 2^25204242 is an apocalyptic number.

25204242 is an abundant number, since it is smaller than the sum of its proper divisors (32405550).

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

25204242 is a wasteful number, since it uses less digits than its factorization.

25204242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600113.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 25204242 is about 5020.3826547386. The cubic root of 25204242 is about 293.1958914769.

Adding to 25204242 its reverse (24240252), we get a palindrome (49444494).

The spelling of 25204242 in words is "twenty-five million, two hundred four thousand, two hundred forty-two".