15251253216 has 48 divisors (see below), whose sum is σ = 40349804544. Its totient is φ = 5043717504.

The previous prime is 15251253181. The next prime is 15251253257. The reversal of 15251253216 is 61235215251.

15251253216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 613270 + ... + 637653.

It is an arithmetic number, because the mean of its divisors is an integer number (840620928).

Almost surely, 2^15251253216 is an apocalyptic number.

15251253216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15251253216 is an abundant number, since it is smaller than the sum of its proper divisors (25098551328).

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

15251253216 is a wasteful number, since it uses less digits than its factorization.

15251253216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251063 (or 1251055 counting only the distinct ones).

The product of its digits is 18000, while the sum is 33.

Adding to 15251253216 its reverse (61235215251), we get a palindrome (76486468467).

The spelling of 15251253216 in words is "fifteen billion, two hundred fifty-one million, two hundred fifty-three thousand, two hundred sixteen".