652505971 has 8 divisors (see below), whose sum is σ = 704242784. Its totient is φ = 600989760.

The previous prime is 652505969. The next prime is 652505977. The reversal of 652505971 is 179505256.

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 652505971 - 2¹ = 652505969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652505977) 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 7 ways as a sum of consecutive naturals, for example, 48975 + ... + 60856.

It is an arithmetic number, because the mean of its divisors is an integer number (88030348).

Almost surely, 2^652505971 is an apocalyptic number.

652505971 is a deficient number, since it is larger than the sum of its proper divisors (51736813).

652505971 is a wasteful number, since it uses less digits than its factorization.

652505971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110301.

The product of its (nonzero) digits is 94500, while the sum is 40.

The square root of 652505971 is about 25544.1964250199. The cubic root of 652505971 is about 867.3508932133.

The spelling of 652505971 in words is "six hundred fifty-two million, five hundred five thousand, nine hundred seventy-one".