652975778 has 48 divisors (see below), whose sum is σ = 1245044160. Its totient is φ = 251304768.

The previous prime is 652975777. The next prime is 652975783. The reversal of 652975778 is 877579256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652975777) 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 23 ways as a sum of consecutive naturals, for example, 83813 + ... + 91271.

It is an arithmetic number, because the mean of its divisors is an integer number (25938420).

Almost surely, 2^652975778 is an apocalyptic number.

652975778 is a deficient number, since it is larger than the sum of its proper divisors (592068382).

652975778 is a wasteful number, since it uses less digits than its factorization.

652975778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7531 (or 7518 counting only the distinct ones).

The product of its digits is 7408800, while the sum is 56.

The square root of 652975778 is about 25553.3907339124. The cubic root of 652975778 is about 867.5590086844.

The spelling of 652975778 in words is "six hundred fifty-two million, nine hundred seventy-five thousand, seven hundred seventy-eight".