653400163 has 4 divisors (see below), whose sum is σ = 703661728. Its totient is φ = 603138600.

The previous prime is 653400133. The next prime is 653400197. The reversal of 653400163 is 361004356.

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 653400163 - 2⁹ = 653399651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (653400133) 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, 25130763 + ... + 25130788.

It is an arithmetic number, because the mean of its divisors is an integer number (175915432).

Almost surely, 2^653400163 is an apocalyptic number.

653400163 is a deficient number, since it is larger than the sum of its proper divisors (50261565).

653400163 is a wasteful number, since it uses less digits than its factorization.

653400163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50261564.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 653400163 is about 25561.6932733338. The cubic root of 653400163 is about 867.7469172860.

The spelling of 653400163 in words is "six hundred fifty-three million, four hundred thousand, one hundred sixty-three".