82355725 has 12 divisors (see below), whose sum is σ = 102552340. Its totient is φ = 65606400.

The previous prime is 82355719. The next prime is 82355729. The reversal of 82355725 is 52755328.

It can be written as a sum of positive squares in 6 ways, for example, as 1247689 + 81108036 = 1117^2 + 9006^2 .

It is not a de Polignac number, because 82355725 - 2³ = 82355717 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82355729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 810 + ... + 12859.

Almost surely, 2^82355725 is an apocalyptic number.

It is an amenable number.

82355725 is a deficient number, since it is larger than the sum of its proper divisors (20196615).

82355725 is a wasteful number, since it uses less digits than its factorization.

82355725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13920 (or 13915 counting only the distinct ones).

The product of its digits is 84000, while the sum is 37.

The square root of 82355725 is about 9075.0055096402. The cubic root of 82355725 is about 435.0754702367.

The spelling of 82355725 in words is "eighty-two million, three hundred fifty-five thousand, seven hundred twenty-five".