15450532000 has 96 divisors (see below), whose sum is σ = 38311313040. Its totient is φ = 6123340800.

The previous prime is 15450531997. The next prime is 15450532037. The reversal of 15450532000 is 23505451.

It can be written as a sum of positive squares in 8 ways, for example, as 3802942224 + 11647589776 = 61668^2 + 107924^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418282 + ... + 453718.

Almost surely, 2^15450532000 is an apocalyptic number.

15450532000 is a gapful number since it is divisible by the number (10) 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 15450532000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19155656520).

15450532000 is an abundant number, since it is smaller than the sum of its proper divisors (22860781040).

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

15450532000 is a wasteful number, since it uses less digits than its factorization.

15450532000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35571 (or 35553 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 15450532000 in words is "fifteen billion, four hundred fifty million, five hundred thirty-two thousand".