3125426512 has 60 divisors (see below), whose sum is σ = 6783433020. Its totient is φ = 1392728064.

The previous prime is 3125426471. The next prime is 3125426569. The reversal of 3125426512 is 2156245213.

It can be written as a sum of positive squares in 6 ways, for example, as 13571856 + 3111854656 = 3684^2 + 55784^2 .

It is a super-2 number, since 2×3125426512² = 19536581763824972288, which 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 11 ways as a sum of consecutive naturals, for example, 58488 + ... + 98344.

It is an arithmetic number, because the mean of its divisors is an integer number (113057217).

Almost surely, 2^3125426512 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 3125426512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3391716510).

3125426512 is an abundant number, since it is smaller than the sum of its proper divisors (3658006508).

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

3125426512 is a wasteful number, since it uses less digits than its factorization.

3125426512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39920 (or 39901 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 3125426512 is about 55905.5141466385. The cubic root of 3125426512 is about 1462.0753796088.

The spelling of 3125426512 in words is "three billion, one hundred twenty-five million, four hundred twenty-six thousand, five hundred twelve".