253203440215 has 12 divisors (see below), whose sum is σ = 333977431032. Its totient is φ = 184147956080.

The previous prime is 253203440213. The next prime is 253203440309. The reversal of 253203440215 is 512044302352.

It is not a de Polignac number, because 253203440215 - 2¹ = 253203440213 is a prime.

It is a super-2 number, since 2×253203440215² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253203440213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209258437 + ... + 209259646.

It is an arithmetic number, because the mean of its divisors is an integer number (27831452586).

Almost surely, 2^253203440215 is an apocalyptic number.

253203440215 is a deficient number, since it is larger than the sum of its proper divisors (80773990817).

253203440215 is a wasteful number, since it uses less digits than its factorization.

253203440215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418518110 (or 418518099 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 253203440215 its reverse (512044302352), we get a palindrome (765247742567).

The spelling of 253203440215 in words is "two hundred fifty-three billion, two hundred three million, four hundred forty thousand, two hundred fifteen".