82253997 has 54 divisors (see below), whose sum is σ = 143971854. Its totient is φ = 45087840.

The previous prime is 82253989. The next prime is 82253999. The reversal of 82253997 is 79935228.

82253997 is a `hidden beast` number, since 8 + 22 + 539 + 97 = 666.

It can be written as a sum of positive squares in only one way, i.e., 80030916 + 2223081 = 8946^2 + 1491^2 .

It is not a de Polignac number, because 82253997 - 2³ = 82253989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82253999) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1158472 + ... + 1158542.

Almost surely, 2^82253997 is an apocalyptic number.

It is an amenable number.

82253997 is a deficient number, since it is larger than the sum of its proper divisors (61717857).

82253997 is a wasteful number, since it uses less digits than its factorization.

82253997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 118 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 82253997 is about 9069.3989326746. The cubic root of 82253997 is about 434.8962574643.

The spelling of 82253997 in words is "eighty-two million, two hundred fifty-three thousand, nine hundred ninety-seven".