3381637725 has 18 divisors (see below), whose sum is σ = 6056889306. Its totient is φ = 1803540000.

The previous prime is 3381637723. The next prime is 3381637751. The reversal of 3381637725 is 5277361833.

3381637725 is a `hidden beast` number, since 3 + 3 + 8 + 1 + 637 + 7 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 235100889 + 3146536836 = 15333^2 + 56094^2 .

It is not a de Polignac number, because 3381637725 - 2¹ = 3381637723 is a prime.

It is a super-3 number, since 3×3381637725³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3381637723) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7514526 + ... + 7514975.

Almost surely, 2^3381637725 is an apocalyptic number.

It is an amenable number.

3381637725 is a deficient number, since it is larger than the sum of its proper divisors (2675251581).

3381637725 is a wasteful number, since it uses less digits than its factorization.

3381637725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15029517 (or 15029509 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 3381637725 is about 58151.8505724452. The cubic root of 3381637725 is about 1500.9827226968.

The spelling of 3381637725 in words is "three billion, three hundred eighty-one million, six hundred thirty-seven thousand, seven hundred twenty-five".