652513423 has 4 divisors (see below), whose sum is σ = 652734000. Its totient is φ = 652292848.

The previous prime is 652513403. The next prime is 652513481. The reversal of 652513423 is 324315256.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 652513423 - 2²¹ = 650416271 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 (652513403) 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, 105790 + ... + 111787.

It is an arithmetic number, because the mean of its divisors is an integer number (163183500).

Almost surely, 2^652513423 is an apocalyptic number.

652513423 is a deficient number, since it is larger than the sum of its proper divisors (220577).

652513423 is a wasteful number, since it uses less digits than its factorization.

652513423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220576.

The product of its digits is 21600, while the sum is 31.

The square root of 652513423 is about 25544.3422894386. The cubic root of 652513423 is about 867.3541950857.

Adding to 652513423 its reverse (324315256), we get a palindrome (976828679).

The spelling of 652513423 in words is "six hundred fifty-two million, five hundred thirteen thousand, four hundred twenty-three".