25500514450 has 24 divisors (see below), whose sum is σ = 47439249408. Its totient is φ = 10198422480.

The previous prime is 25500514433. The next prime is 25500514489. The reversal of 25500514450 is 5441500552.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265639 + ... + 348661.

It is an arithmetic number, because the mean of its divisors is an integer number (1976635392).

Almost surely, 2^25500514450 is an apocalyptic number.

25500514450 is a deficient number, since it is larger than the sum of its proper divisors (21938734958).

25500514450 is a wasteful number, since it uses less digits than its factorization.

25500514450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89178 (or 89173 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

The spelling of 25500514450 in words is "twenty-five billion, five hundred million, five hundred fourteen thousand, four hundred fifty".