653645083 has 24 divisors (see below), whose sum is σ = 824779424. Its totient is φ = 504437760.

The previous prime is 653645081. The next prime is 653645149. The reversal of 653645083 is 380546356.

It is not a de Polignac number, because 653645083 - 2¹ = 653645081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (653645081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150835 + ... + 155107.

Almost surely, 2^653645083 is an apocalyptic number.

653645083 is a deficient number, since it is larger than the sum of its proper divisors (171134341).

653645083 is a wasteful number, since it uses less digits than its factorization.

653645083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4375 (or 4334 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The square root of 653645083 is about 25566.4835869151. The cubic root of 653645083 is about 867.8553255978.

The spelling of 653645083 in words is "six hundred fifty-three million, six hundred forty-five thousand, eighty-three".