15520896 has 96 divisors (see below), whose sum is σ = 46410000. Its totient is φ = 5163264.

The previous prime is 15520877. The next prime is 15520909. The reversal of 15520896 is 69802551.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a self number, because there is not a number n which added to its sum of digits gives 15520896.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30855 + ... + 31353.

Almost surely, 2^15520896 is an apocalyptic number.

15520896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15520896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23205000).

15520896 is an abundant number, since it is smaller than the sum of its proper divisors (30889104).

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

15520896 is an frugal number, since it uses more digits than its factorization.

15520896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 15520896 is about 3939.6568378477. The cubic root of 15520896 is about 249.4435409992.

The spelling of 15520896 in words is "fifteen million, five hundred twenty thousand, eight hundred ninety-six".