652855558257 has 32 divisors (see below), whose sum is σ = 1109665017600. Its totient is φ = 371608694784.

The previous prime is 652855558171. The next prime is 652855558297. The reversal of 652855558257 is 752855558256.

652855558257 is a `hidden beast` number, since 6 + 5 + 2 + 8 + 55 + 558 + 25 + 7 = 666.

It is not a de Polignac number, because 652855558257 - 2⁸ = 652855558001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 652855558194 and 652855558203.

It is not an unprimeable number, because it can be changed into a prime (652855558297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6671782 + ... + 6768927.

It is an arithmetic number, because the mean of its divisors is an integer number (34677031800).

Almost surely, 2^652855558257 is an apocalyptic number.

It is an amenable number.

652855558257 is a deficient number, since it is larger than the sum of its proper divisors (456809459343).

652855558257 is a wasteful number, since it uses less digits than its factorization.

652855558257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13440982 (or 13440976 counting only the distinct ones).

The product of its digits is 168000000, while the sum is 63.

Subtracting 652855558257 from its reverse (752855558256), we obtain a palindrome (99999999999).

The spelling of 652855558257 in words is "six hundred fifty-two billion, eight hundred fifty-five million, five hundred fifty-eight thousand, two hundred fifty-seven".