8031379725 has 36 divisors (see below), whose sum is σ = 14458194036. Its totient is φ = 4261635840.

The previous prime is 8031379709. The next prime is 8031379757. The reversal of 8031379725 is 5279731308.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 785624841 + 7245754884 = 28029^2 + 85122^2 .

It is not a de Polignac number, because 8031379725 - 2⁴ = 8031379709 is a prime.

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

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 35 ways as a sum of consecutive naturals, for example, 46272 + ... + 134921.

It is an arithmetic number, because the mean of its divisors is an integer number (401616501).

Almost surely, 2^8031379725 is an apocalyptic number.

It is an amenable number.

8031379725 is a deficient number, since it is larger than the sum of its proper divisors (6426814311).

8031379725 is a wasteful number, since it uses less digits than its factorization.

8031379725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181406 (or 181398 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 8031379725 is about 89617.9654143074. The cubic root of 8031379725 is about 2002.6115654620.

The spelling of 8031379725 in words is "eight billion, thirty-one million, three hundred seventy-nine thousand, seven hundred twenty-five".