82553953 has 4 divisors (see below), whose sum is σ = 82651140. Its totient is φ = 82456768.

The previous prime is 82553941. The next prime is 82553957. The reversal of 82553953 is 35935528.

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

It can be written as a sum of positive squares in 2 ways, for example, as 55845729 + 26708224 = 7473^2 + 5168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82553953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82553957) 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, 47308 + ... + 49021.

It is an arithmetic number, because the mean of its divisors is an integer number (20662785).

Almost surely, 2^82553953 is an apocalyptic number.

It is an amenable number.

82553953 is a deficient number, since it is larger than the sum of its proper divisors (97187).

82553953 is an equidigital number, since it uses as much as digits as its factorization.

82553953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97186.

The product of its digits is 162000, while the sum is 40.

The square root of 82553953 is about 9085.9205917727. The cubic root of 82553953 is about 435.4242621672.

The spelling of 82553953 in words is "eighty-two million, five hundred fifty-three thousand, nine hundred fifty-three".