253402303 has 16 divisors (see below), whose sum is σ = 316362240. Its totient is φ = 197186400.

The previous prime is 253402291. The next prime is 253402327. The reversal of 253402303 is 303204352.

It is a cyclic number.

It is not a de Polignac number, because 253402303 - 2⁵ = 253402271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253402003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68973 + ... + 72553.

It is an arithmetic number, because the mean of its divisors is an integer number (19772640).

Almost surely, 2^253402303 is an apocalyptic number.

253402303 is a deficient number, since it is larger than the sum of its proper divisors (62959937).

253402303 is a wasteful number, since it uses less digits than its factorization.

253402303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4518.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 253402303 is about 15918.6149837227. The cubic root of 253402303 is about 632.8054135950.

Adding to 253402303 its reverse (303204352), we get a palindrome (556606655).

The spelling of 253402303 in words is "two hundred fifty-three million, four hundred two thousand, three hundred three".