15615925248 has 264 divisors, whose sum is σ = 52824783744. Its totient is φ = 4055654400.

The previous prime is 15615925223. The next prime is 15615925291. The reversal of 15615925248 is 84252951651.

It is a tau number, because it is divible by the number of its divisors (264).

It is a super-2 number, since 2×15615925248² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 15615925197 and 15615925206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1651093 + ... + 1660523.

Almost surely, 2^15615925248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15615925248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26412391872).

15615925248 is an abundant number, since it is smaller than the sum of its proper divisors (37208858496).

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

15615925248 is a wasteful number, since it uses less digits than its factorization.

15615925248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9479 (or 9454 counting only the distinct ones).

The product of its digits is 864000, while the sum is 48.

The spelling of 15615925248 in words is "fifteen billion, six hundred fifteen million, nine hundred twenty-five thousand, two hundred forty-eight".