82501173 has 48 divisors (see below), whose sum is σ = 132088320. Its totient is φ = 51309936.

The previous prime is 82501163. The next prime is 82501183. The reversal of 82501173 is 37110528.

It is an interprime number because it is at equal distance from previous prime (82501163) and next prime (82501183).

It is not a de Polignac number, because 82501173 - 2⁵ = 82501141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82501103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 493936 + ... + 494102.

It is an arithmetic number, because the mean of its divisors is an integer number (2751840).

Almost surely, 2^82501173 is an apocalyptic number.

It is an amenable number.

82501173 is a deficient number, since it is larger than the sum of its proper divisors (49587147).

82501173 is a wasteful number, since it uses less digits than its factorization.

82501173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 82501173 is about 9083.0156335878. The cubic root of 82501173 is about 435.3314477463.

The spelling of 82501173 in words is "eighty-two million, five hundred one thousand, one hundred seventy-three".