82617725 has 24 divisors (see below), whose sum is σ = 108957312. Its totient is φ = 62004800.

The previous prime is 82617673. The next prime is 82617727. The reversal of 82617725 is 52771628.

It is not a de Polignac number, because 82617725 - 2²⁶ = 15508861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82617727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29120 + ... + 31830.

It is an arithmetic number, because the mean of its divisors is an integer number (4539888).

Almost surely, 2^82617725 is an apocalyptic number.

It is an amenable number.

82617725 is a deficient number, since it is larger than the sum of its proper divisors (26339587).

82617725 is a wasteful number, since it uses less digits than its factorization.

82617725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797 (or 2792 counting only the distinct ones).

The product of its digits is 47040, while the sum is 38.

The square root of 82617725 is about 9089.4293000166. The cubic root of 82617725 is about 435.5363534238.

The spelling of 82617725 in words is "eighty-two million, six hundred seventeen thousand, seven hundred twenty-five".