25234402 has 4 divisors (see below), whose sum is σ = 37851606. Its totient is φ = 12617200.

The previous prime is 25234397. The next prime is 25234439. The reversal of 25234402 is 20443252.

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., 14205361 + 11029041 = 3769^2 + 3321^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6308599 + ... + 6308602.

Almost surely, 2^25234402 is an apocalyptic number.

25234402 is a deficient number, since it is larger than the sum of its proper divisors (12617204).

25234402 is a wasteful number, since it uses less digits than its factorization.

25234402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12617203.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 25234402 is about 5023.3855117839. The cubic root of 25234402 is about 293.3127932702.

Adding to 25234402 its reverse (20443252), we get a palindrome (45677654).

The spelling of 25234402 in words is "twenty-five million, two hundred thirty-four thousand, four hundred two".