253203440203 has 6 divisors (see below), whose sum is σ = 294542777436. Its totient is φ = 217031520132.

The previous prime is 253203440201. The next prime is 253203440213. The reversal of 253203440203 is 302044302352.

It is not a de Polignac number, because 253203440203 - 2¹ = 253203440201 is a prime.

It is a super-2 number, since 2×253203440203² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253203440201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2583708525 + ... + 2583708622.

It is an arithmetic number, because the mean of its divisors is an integer number (49090462906).

Almost surely, 2^253203440203 is an apocalyptic number.

253203440203 is a deficient number, since it is larger than the sum of its proper divisors (41339337233).

253203440203 is an equidigital number, since it uses as much as digits as its factorization.

253203440203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5167417161 (or 5167417154 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 28.

Adding to 253203440203 its reverse (302044302352), we get a palindrome (555247742555).

The spelling of 253203440203 in words is "two hundred fifty-three billion, two hundred three million, four hundred forty thousand, two hundred three".