82553943 has 4 divisors (see below), whose sum is σ = 110071928. Its totient is φ = 55035960.

The previous prime is 82553941. The next prime is 82553957. The reversal of 82553943 is 34935528.

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

It is not a de Polignac number, because 82553943 - 2¹ = 82553941 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 (82553941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13758988 + ... + 13758993.

It is an arithmetic number, because the mean of its divisors is an integer number (27517982).

Almost surely, 2^82553943 is an apocalyptic number.

82553943 is a deficient number, since it is larger than the sum of its proper divisors (27517985).

82553943 is a wasteful number, since it uses less digits than its factorization.

82553943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27517984.

The product of its digits is 129600, while the sum is 39.

The square root of 82553943 is about 9085.9200414708. The cubic root of 82553943 is about 435.4242445858.

The spelling of 82553943 in words is "eighty-two million, five hundred fifty-three thousand, nine hundred forty-three".