15448509552 has 160 divisors (see below), whose sum is σ = 49416694272. Its totient is φ = 4057546752.

The previous prime is 15448509533. The next prime is 15448509647. The reversal of 15448509552 is 25590584451.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214168 + ... + 277064.

Almost surely, 2^15448509552 is an apocalyptic number.

15448509552 is a gapful number since it is divisible by the number (12) 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 15448509552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24708347136).

15448509552 is an abundant number, since it is smaller than the sum of its proper divisors (33968184720).

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

15448509552 is a wasteful number, since it uses less digits than its factorization.

15448509552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62975 (or 62969 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 48.

The spelling of 15448509552 in words is "fifteen billion, four hundred forty-eight million, five hundred nine thousand, five hundred fifty-two".