653752663 has 4 divisors (see below), whose sum is σ = 692208720. Its totient is φ = 615296608.

The previous prime is 653752651. The next prime is 653752669. The reversal of 653752663 is 366257356.

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 653752663 - 2²⁵ = 620198231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653752669) 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, 19228003 + ... + 19228036.

It is an arithmetic number, because the mean of its divisors is an integer number (173052180).

Almost surely, 2^653752663 is an apocalyptic number.

653752663 is a deficient number, since it is larger than the sum of its proper divisors (38456057).

653752663 is a wasteful number, since it uses less digits than its factorization.

653752663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38456056.

The product of its digits is 680400, while the sum is 43.

The square root of 653752663 is about 25568.5874267626. The cubic root of 653752663 is about 867.9029348976.

The spelling of 653752663 in words is "six hundred fifty-three million, seven hundred fifty-two thousand, six hundred sixty-three".