25431104 has 14 divisors (see below), whose sum is σ = 50464974. Its totient is φ = 12715520.

The previous prime is 25431073. The next prime is 25431151. The reversal of 25431104 is 40113452.

It can be written as a sum of positive squares in only one way, i.e., 13542400 + 11888704 = 3680^2 + 3448^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198617 + ... + 198744.

It is an arithmetic number, because the mean of its divisors is an integer number (3604641).

Almost surely, 2^25431104 is an apocalyptic number.

It is an amenable number.

25431104 is a deficient number, since it is larger than the sum of its proper divisors (25033870).

25431104 is an equidigital number, since it uses as much as digits as its factorization.

25431104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397373 (or 397363 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 25431104 is about 5042.9261346960. The cubic root of 25431104 is about 294.0729453255.

Adding to 25431104 its reverse (40113452), we get a palindrome (65544556).

The spelling of 25431104 in words is "twenty-five million, four hundred thirty-one thousand, one hundred four".