25450250434 has 12 divisors (see below), whose sum is σ = 44408090214. Its totient is φ = 10907250144.

The previous prime is 25450250417. The next prime is 25450250479. The reversal of 25450250434 is 43405205452.

It can be written as a sum of positive squares in only one way, i.e., 18775850625 + 6674399809 = 137025^2 + 81697^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25450250434.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129848119 + ... + 129848314.

Almost surely, 2^25450250434 is an apocalyptic number.

25450250434 is a deficient number, since it is larger than the sum of its proper divisors (18957839780).

25450250434 is a wasteful number, since it uses less digits than its factorization.

25450250434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259696449 (or 259696442 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 34.

Adding to 25450250434 its reverse (43405205452), we get a palindrome (68855455886).

The spelling of 25450250434 in words is "twenty-five billion, four hundred fifty million, two hundred fifty thousand, four hundred thirty-four".