25235267458 has 4 divisors (see below), whose sum is σ = 37852901190. Its totient is φ = 12617633728.

The previous prime is 25235267417. The next prime is 25235267467. The reversal of 25235267458 is 85476253252.

25235267458 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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., 18386546409 + 6848721049 = 135597^2 + 82757^2 .

It is a Smith number, since the sum of its digits (49) 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, 6308816863 + ... + 6308816866.

Almost surely, 2^25235267458 is an apocalyptic number.

25235267458 is a deficient number, since it is larger than the sum of its proper divisors (12617633732).

25235267458 is a wasteful number, since it uses less digits than its factorization.

25235267458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12617633731.

The product of its digits is 4032000, while the sum is 49.

The spelling of 25235267458 in words is "twenty-five billion, two hundred thirty-five million, two hundred sixty-seven thousand, four hundred fifty-eight".