83520453 has 4 divisors (see below), whose sum is σ = 111360608. Its totient is φ = 55680300.

The previous prime is 83520443. The next prime is 83520461. The reversal of 83520453 is 35402538.

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 not a de Polignac number, because 83520453 - 2⁸ = 83520197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83520453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83520443) 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, 13920073 + ... + 13920078.

It is an arithmetic number, because the mean of its divisors is an integer number (27840152).

Almost surely, 2^83520453 is an apocalyptic number.

It is an amenable number.

83520453 is a deficient number, since it is larger than the sum of its proper divisors (27840155).

83520453 is a wasteful number, since it uses less digits than its factorization.

83520453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27840154.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 83520453 is about 9138.9525110923. The cubic root of 83520453 is about 437.1169161449.

The spelling of 83520453 in words is "eighty-three million, five hundred twenty thousand, four hundred fifty-three".