3257551812 has 24 divisors (see below), whose sum is σ = 7639543296. Its totient is φ = 1080337888.

The previous prime is 3257551789. The next prime is 3257551813. The reversal of 3257551812 is 2181557523.

It is a super-2 number, since 2×3257551812² = 21223287615728966688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3257551813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686628 + ... + 691355.

It is an arithmetic number, because the mean of its divisors is an integer number (318314304).

Almost surely, 2^3257551812 is an apocalyptic number.

It is an amenable number.

3257551812 is an abundant number, since it is smaller than the sum of its proper divisors (4381991484).

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

3257551812 is a wasteful number, since it uses less digits than its factorization.

3257551812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378187 (or 1378185 counting only the distinct ones).

The product of its digits is 84000, while the sum is 39.

The square root of 3257551812 is about 57074.9665965737. The cubic root of 3257551812 is about 1482.3944397120.

The spelling of 3257551812 in words is "three billion, two hundred fifty-seven million, five hundred fifty-one thousand, eight hundred twelve".