25250506 has 24 divisors (see below), whose sum is σ = 40997124. Its totient is φ = 11655360.

The previous prime is 25250501. The next prime is 25250531. The reversal of 25250506 is 60505252.

It can be written as a sum of positive squares in 2 ways, for example, as 18275625 + 6974881 = 4275^2 + 2641^2 .

It is not an unprimeable number, because it can be changed into a prime (25250501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29176 + ... + 30028.

Almost surely, 2^25250506 is an apocalyptic number.

25250506 is a deficient number, since it is larger than the sum of its proper divisors (15746618).

25250506 is a wasteful number, since it uses less digits than its factorization.

25250506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 915 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 25250506 is about 5024.9881591900. The cubic root of 25250506 is about 293.3751751034.

Adding to 25250506 its reverse (60505252), we get a palindrome (85755758).

The spelling of 25250506 in words is "twenty-five million, two hundred fifty thousand, five hundred six".