25115651316 has 48 divisors (see below), whose sum is σ = 74416746880. Its totient is φ = 7175900160.

The previous prime is 25115651293. The next prime is 25115651317. The reversal of 25115651316 is 61315651152.

25115651316 is a `hidden beast` number, since 2 + 511 + 5 + 6 + 5 + 131 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25115651317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16610125 + ... + 16611636.

Almost surely, 2^25115651316 is an apocalyptic number.

It is an amenable number.

25115651316 is an abundant number, since it is smaller than the sum of its proper divisors (49301095564).

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

25115651316 is a wasteful number, since it uses less digits than its factorization.

25115651316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33221781 (or 33221773 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The spelling of 25115651316 in words is "twenty-five billion, one hundred fifteen million, six hundred fifty-one thousand, three hundred sixteen".