82668725 has 24 divisors (see below), whose sum is σ = 105171840. Its totient is φ = 64440000.

The previous prime is 82668713. The next prime is 82668743. The reversal of 82668725 is 52786628.

It is not a de Polignac number, because 82668725 - 2¹² = 82664629 is a prime.

Its product of digits (322560) is a multiple of the sum of its prime divisors (576).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 230096 + ... + 230454.

It is an arithmetic number, because the mean of its divisors is an integer number (4382160).

Almost surely, 2^82668725 is an apocalyptic number.

It is an amenable number.

82668725 is a deficient number, since it is larger than the sum of its proper divisors (22503115).

82668725 is a wasteful number, since it uses less digits than its factorization.

82668725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581 (or 576 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The square root of 82668725 is about 9092.2343238612. The cubic root of 82668725 is about 435.6259539908.

The spelling of 82668725 in words is "eighty-two million, six hundred sixty-eight thousand, seven hundred twenty-five".