523454653 has 4 divisors (see below), whose sum is σ = 526589280. Its totient is φ = 520320028.

The previous prime is 523454639. The next prime is 523454681. The reversal of 523454653 is 356454325.

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 a de Polignac number, because none of the positive numbers 2^k-523454653 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 (523454683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1567063 + ... + 1567396.

It is an arithmetic number, because the mean of its divisors is an integer number (131647320).

Almost surely, 2^523454653 is an apocalyptic number.

It is an amenable number.

523454653 is a deficient number, since it is larger than the sum of its proper divisors (3134627).

523454653 is a wasteful number, since it uses less digits than its factorization.

523454653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134626.

The product of its digits is 216000, while the sum is 37.

The square root of 523454653 is about 22879.1313864841. The cubic root of 523454653 is about 805.9220190468.

The spelling of 523454653 in words is "five hundred twenty-three million, four hundred fifty-four thousand, six hundred fifty-three".