25135086850 has 48 divisors (see below), whose sum is σ = 47525011776. Its totient is φ = 9888120000.

The previous prime is 25135086841. The next prime is 25135086863. The reversal of 25135086850 is 5868053152.

It is a junction number, because it is equal to n+sod(n) for n = 25135086797 and 25135086806.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2208675 + ... + 2220025.

It is an arithmetic number, because the mean of its divisors is an integer number (990104412).

Almost surely, 2^25135086850 is an apocalyptic number.

25135086850 is a deficient number, since it is larger than the sum of its proper divisors (22389924926).

25135086850 is a wasteful number, since it uses less digits than its factorization.

25135086850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12091 (or 12086 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 43.

The spelling of 25135086850 in words is "twenty-five billion, one hundred thirty-five million, eighty-six thousand, eight hundred fifty".