25251065412 has 24 divisors (see below), whose sum is σ = 59885042112. Its totient is φ = 8279037600.

The previous prime is 25251065393. The next prime is 25251065423. The reversal of 25251065412 is 21456015252.

It is a super-2 number, since 2×25251065412² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17247264 + ... + 17248727.

It is an arithmetic number, because the mean of its divisors is an integer number (2495210088).

Almost surely, 2^25251065412 is an apocalyptic number.

It is an amenable number.

25251065412 is an abundant number, since it is smaller than the sum of its proper divisors (34633976700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25251065412 is a wasteful number, since it uses less digits than its factorization.

25251065412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34496059 (or 34496057 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 25251065412 in words is "twenty-five billion, two hundred fifty-one million, sixty-five thousand, four hundred twelve".