652458064 has 20 divisors (see below), whose sum is σ = 1266966900. Its totient is φ = 325498880.

The previous prime is 652458047. The next prime is 652458071. The reversal of 652458064 is 460854256.

It can be written as a sum of positive squares in 2 ways, for example, as 408848400 + 243609664 = 20220^2 + 15608^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38227 + ... + 52594.

It is an arithmetic number, because the mean of its divisors is an integer number (63348345).

Almost surely, 2^652458064 is an apocalyptic number.

It is an amenable number.

652458064 is a deficient number, since it is larger than the sum of its proper divisors (614508836).

652458064 is a wasteful number, since it uses less digits than its factorization.

652458064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91278 (or 91272 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The square root of 652458064 is about 25543.2586801293. The cubic root of 652458064 is about 867.3296657212.

The spelling of 652458064 in words is "six hundred fifty-two million, four hundred fifty-eight thousand, sixty-four".