32147525440 has 56 divisors (see below), whose sum is σ = 79191017640. Its totient is φ = 12415592448.

The previous prime is 32147525413. The next prime is 32147525491. The reversal of 32147525440 is 4452574123.

It can be written as a sum of positive squares in 4 ways, for example, as 4301261056 + 27846264384 = 65584^2 + 166872^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 32147525440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1722807 + ... + 1741366.

It is an arithmetic number, because the mean of its divisors is an integer number (1414125315).

Almost surely, 2^32147525440 is an apocalyptic number.

It is an amenable number.

32147525440 is an abundant number, since it is smaller than the sum of its proper divisors (47043492200).

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

32147525440 is a wasteful number, since it uses less digits than its factorization.

32147525440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464219 (or 3464209 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 37.

The spelling of 32147525440 in words is "thirty-two billion, one hundred forty-seven million, five hundred twenty-five thousand, four hundred forty".