652251766 has 4 divisors (see below), whose sum is σ = 978377652. Its totient is φ = 326125882.

The previous prime is 652251757. The next prime is 652251773. The reversal of 652251766 is 667152256.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163062940 + ... + 163062943.

It is an arithmetic number, because the mean of its divisors is an integer number (244594413).

Almost surely, 2^652251766 is an apocalyptic number.

652251766 is a deficient number, since it is larger than the sum of its proper divisors (326125886).

652251766 is a wasteful number, since it uses less digits than its factorization.

652251766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326125885.

The product of its digits is 151200, while the sum is 40.

The square root of 652251766 is about 25539.2201525419. The cubic root of 652251766 is about 867.2382436325.

The spelling of 652251766 in words is "six hundred fifty-two million, two hundred fifty-one thousand, seven hundred sixty-six".