25032506 has 4 divisors (see below), whose sum is σ = 37548762. Its totient is φ = 12516252.

The previous prime is 25032457. The next prime is 25032521. The reversal of 25032506 is 60523052.

It is a happy number.

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., 19439281 + 5593225 = 4409^2 + 2365^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6258125 + ... + 6258128.

Almost surely, 2^25032506 is an apocalyptic number.

25032506 is a deficient number, since it is larger than the sum of its proper divisors (12516256).

25032506 is a wasteful number, since it uses less digits than its factorization.

25032506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12516255.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 25032506 is about 5003.2495440463. The cubic root of 25032506 is about 292.5284497616.

Adding to 25032506 its reverse (60523052), we get a palindrome (85555558).

The spelling of 25032506 in words is "twenty-five million, thirty-two thousand, five hundred six".