3250575640 has 64 divisors (see below), whose sum is σ = 7897982400. Its totient is φ = 1196923392.

The previous prime is 3250575637. The next prime is 3250575683. The reversal of 3250575640 is 465750523.

It is a super-2 number, since 2×3250575640² = 21132483982722819200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3250575640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185581 + ... + 202339.

It is an arithmetic number, because the mean of its divisors is an integer number (123405975).

Almost surely, 2^3250575640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3250575640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3948991200).

3250575640 is an abundant number, since it is smaller than the sum of its proper divisors (4647406760).

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

3250575640 is a wasteful number, since it uses less digits than its factorization.

3250575640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17156 (or 17152 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 37.

The square root of 3250575640 is about 57013.8197282027. The cubic root of 3250575640 is about 1481.3354819249.

The spelling of 3250575640 in words is "three billion, two hundred fifty million, five hundred seventy-five thousand, six hundred forty".