653725993 has 8 divisors (see below), whose sum is σ = 656642880. Its totient is φ = 650815440.

The previous prime is 653725991. The next prime is 653725997. The reversal of 653725993 is 399527356.

It is a happy number.

653725993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 653725993 - 2¹ = 653725991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653725991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405996 + ... + 407602.

It is an arithmetic number, because the mean of its divisors is an integer number (82080360).

Almost surely, 2^653725993 is an apocalyptic number.

It is an amenable number.

653725993 is a deficient number, since it is larger than the sum of its proper divisors (2916887).

653725993 is a wasteful number, since it uses less digits than its factorization.

653725993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167.

The product of its digits is 1530900, while the sum is 49.

The square root of 653725993 is about 25568.0658830503. The cubic root of 653725993 is about 867.8911326329.

The spelling of 653725993 in words is "six hundred fifty-three million, seven hundred twenty-five thousand, nine hundred ninety-three".