32501253440 has 28 divisors (see below), whose sum is σ = 77393610516. Its totient is φ = 13000501248.

The previous prime is 32501253437. The next prime is 32501253469. The reversal of 32501253440 is 4435210523.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25004464384 + 7496789056 = 158128^2 + 86584^2 .

It is a super-2 number, since 2×32501253440² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50782889 + ... + 50783528.

Almost surely, 2^32501253440 is an apocalyptic number.

It is an amenable number.

32501253440 is an abundant number, since it is smaller than the sum of its proper divisors (44892357076).

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

32501253440 is a wasteful number, since it uses less digits than its factorization.

32501253440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101566434 (or 101566424 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 32501253440 its reverse (4435210523), we get a palindrome (36936463963).

The spelling of 32501253440 in words is "thirty-two billion, five hundred one million, two hundred fifty-three thousand, four hundred forty".