25404412 has 24 divisors (see below), whose sum is σ = 48953520. Its totient is φ = 11439360.

The previous prime is 25404373. The next prime is 25404413. The reversal of 25404412 is 21440452.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25404413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2148 + ... + 7444.

It is an arithmetic number, because the mean of its divisors is an integer number (2039730).

Almost surely, 2^25404412 is an apocalyptic number.

25404412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25404412 is a deficient number, since it is larger than the sum of its proper divisors (23549108).

25404412 is a wasteful number, since it uses less digits than its factorization.

25404412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5421 (or 5419 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 25404412 is about 5040.2789605338. The cubic root of 25404412 is about 293.9700248644.

Adding to 25404412 its reverse (21440452), we get a palindrome (46844864).

The spelling of 25404412 in words is "twenty-five million, four hundred four thousand, four hundred twelve".