653452403 has 2 divisors, whose sum is σ = 653452404. Its totient is φ = 653452402.

The previous prime is 653452399. The next prime is 653452433. The reversal of 653452403 is 304254356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 653452403 - 2² = 653452399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 653452403.

It is not a weakly prime, because it can be changed into another prime (653452433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326726201 + 326726202.

It is an arithmetic number, because the mean of its divisors is an integer number (326726202).

Almost surely, 2^653452403 is an apocalyptic number.

653452403 is a deficient number, since it is larger than the sum of its proper divisors (1).

653452403 is an equidigital number, since it uses as much as digits as its factorization.

653452403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 32.

The square root of 653452403 is about 25562.7150944496. The cubic root of 653452403 is about 867.7700424159.

The spelling of 653452403 in words is "six hundred fifty-three million, four hundred fifty-two thousand, four hundred three".