652510678531 has 4 divisors (see below), whose sum is σ = 652524074200. Its totient is φ = 652497282864.

The previous prime is 652510678499. The next prime is 652510678543. The reversal of 652510678531 is 135876015256.

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

It is a cyclic number.

It is not a de Polignac number, because 652510678531 - 2⁵ = 652510678499 is a prime.

It is a super-2 number, since 2×652510678531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652510678591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6624501 + ... + 6722278.

It is an arithmetic number, because the mean of its divisors is an integer number (163131018550).

Almost surely, 2^652510678531 is an apocalyptic number.

652510678531 is a deficient number, since it is larger than the sum of its proper divisors (13395669).

652510678531 is a wasteful number, since it uses less digits than its factorization.

652510678531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13395668.

The product of its (nonzero) digits is 1512000, while the sum is 49.

The spelling of 652510678531 in words is "six hundred fifty-two billion, five hundred ten million, six hundred seventy-eight thousand, five hundred thirty-one".