68522453 has 4 divisors (see below), whose sum is σ = 68905440. Its totient is φ = 68139468.

The previous prime is 68522401. The next prime is 68522491. The reversal of 68522453 is 35422586.

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 68522453 - 2⁸ = 68522197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68522353) 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, 191225 + ... + 191582.

It is an arithmetic number, because the mean of its divisors is an integer number (17226360).

Almost surely, 2^68522453 is an apocalyptic number.

It is an amenable number.

68522453 is a deficient number, since it is larger than the sum of its proper divisors (382987).

68522453 is a wasteful number, since it uses less digits than its factorization.

68522453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382986.

The product of its digits is 57600, while the sum is 35.

The square root of 68522453 is about 8277.8290028244. The cubic root of 68522453 is about 409.2081743036.

The spelling of 68522453 in words is "sixty-eight million, five hundred twenty-two thousand, four hundred fifty-three".