82505702 has 4 divisors (see below), whose sum is σ = 123758556. Its totient is φ = 41252850.

The previous prime is 82505701. The next prime is 82505711. The reversal of 82505702 is 20750528.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82505701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20626424 + ... + 20626427.

It is an arithmetic number, because the mean of its divisors is an integer number (30939639).

Almost surely, 2^82505702 is an apocalyptic number.

82505702 is a deficient number, since it is larger than the sum of its proper divisors (41252854).

82505702 is a wasteful number, since it uses less digits than its factorization.

82505702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41252853.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 82505702 is about 9083.2649416386. The cubic root of 82505702 is about 435.3394136131.

The spelling of 82505702 in words is "eighty-two million, five hundred five thousand, seven hundred two".