38251336725 has 90 divisors (see below), whose sum is σ = 82423026114. Its totient is φ = 17486280000.

The previous prime is 38251336637. The next prime is 38251336729. The reversal of 38251336725 is 52763315283.

38251336725 is a `hidden beast` number, since 3 + 82 + 513 + 36 + 7 + 25 = 666.

38251336725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 941323761 + 37310012964 = 30681^2 + 193158^2 .

It is not a de Polignac number, because 38251336725 - 2¹⁰ = 38251335701 is a prime.

It is a super-2 number, since 2×38251336725² (a number of 22 digits) contains 22 as substring.

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 (38251336729) by changing a digit.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 93526 + ... + 291975.

Almost surely, 2^38251336725 is an apocalyptic number.

38251336725 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38251336725 is an abundant number, since it is smaller than the sum of its proper divisors (44171689389).

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

38251336725 is a wasteful number, since it uses less digits than its factorization.

38251336725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385537 (or 385516 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The spelling of 38251336725 in words is "thirty-eight billion, two hundred fifty-one million, three hundred thirty-six thousand, seven hundred twenty-five".