652326522581 has 8 divisors (see below), whose sum is σ = 674889348864. Its totient is φ = 629858698560.

The previous prime is 652326522569. The next prime is 652326522623. The reversal of 652326522581 is 185225623256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 652326522581 - 2⁶ = 652326522517 is a prime.

It is a super-2 number, since 2×652326522581² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652326525581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23736596 + ... + 23764061.

It is an arithmetic number, because the mean of its divisors is an integer number (84361168608).

Almost surely, 2^652326522581 is an apocalyptic number.

It is an amenable number.

652326522581 is a deficient number, since it is larger than the sum of its proper divisors (22562826283).

652326522581 is a wasteful number, since it uses less digits than its factorization.

652326522581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47501131.

The product of its digits is 1728000, while the sum is 47.

The spelling of 652326522581 in words is "six hundred fifty-two billion, three hundred twenty-six million, five hundred twenty-two thousand, five hundred eighty-one".