82505453 has 4 divisors (see below), whose sum is σ = 83276640. Its totient is φ = 81734268.

The previous prime is 82505447. The next prime is 82505461. The reversal of 82505453 is 35450528.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82505453 - 2⁸ = 82505197 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 (82505443) 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, 385433 + ... + 385646.

It is an arithmetic number, because the mean of its divisors is an integer number (20819160).

Almost surely, 2^82505453 is an apocalyptic number.

It is an amenable number.

82505453 is a deficient number, since it is larger than the sum of its proper divisors (771187).

82505453 is a wasteful number, since it uses less digits than its factorization.

82505453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771186.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 82505453 is about 9083.2512351030. The cubic root of 82505453 is about 435.3389756651.

The spelling of 82505453 in words is "eighty-two million, five hundred five thousand, four hundred fifty-three".