32513523240 has 128 divisors (see below), whose sum is σ = 106478064000. Its totient is φ = 7876869120.

The previous prime is 32513523193. The next prime is 32513523257. The reversal of 32513523240 is 4232531523.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 32513523198 and 32513523207.

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, 2227486 + ... + 2242034.

It is an arithmetic number, because the mean of its divisors is an integer number (831859875).

Almost surely, 2^32513523240 is an apocalyptic number.

32513523240 is a gapful number since it is divisible by the number (30) 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 32513523240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53239032000).

32513523240 is an abundant number, since it is smaller than the sum of its proper divisors (73964540760).

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

32513523240 is a wasteful number, since it uses less digits than its factorization.

32513523240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16267 (or 16263 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The spelling of 32513523240 in words is "thirty-two billion, five hundred thirteen million, five hundred twenty-three thousand, two hundred forty".