652777231 has 4 divisors (see below), whose sum is σ = 652828600. Its totient is φ = 652725864.

The previous prime is 652777217. The next prime is 652777247. The reversal of 652777231 is 132777256.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 652777231 - 2¹⁹ = 652252943 is a prime.

It is a super-2 number, since 2×652777231² = 852236226624054722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652777201) 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, 8905 + ... + 37213.

It is an arithmetic number, because the mean of its divisors is an integer number (163207150).

Almost surely, 2^652777231 is an apocalyptic number.

652777231 is a deficient number, since it is larger than the sum of its proper divisors (51369).

652777231 is a wasteful number, since it uses less digits than its factorization.

652777231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51368.

The product of its digits is 123480, while the sum is 40.

The square root of 652777231 is about 25549.5054942361. The cubic root of 652777231 is about 867.4710683627.

The spelling of 652777231 in words is "six hundred fifty-two million, seven hundred seventy-seven thousand, two hundred thirty-one".