253115423 has 6 divisors (see below), whose sum is σ = 278217912. Its totient is φ = 230104820.

The previous prime is 253115419. The next prime is 253115441. The reversal of 253115423 is 324511352.

It is a happy number.

It is not a de Polignac number, because 253115423 - 2² = 253115419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253115392 and 253115401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253115453) 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, 1045811 + ... + 1046052.

It is an arithmetic number, because the mean of its divisors is an integer number (46369652).

Almost surely, 2^253115423 is an apocalyptic number.

253115423 is a deficient number, since it is larger than the sum of its proper divisors (25102489).

253115423 is a wasteful number, since it uses less digits than its factorization.

253115423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091885 (or 2091874 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 253115423 is about 15909.6015977774. The cubic root of 253115423 is about 632.5665210440.

Adding to 253115423 its reverse (324511352), we get a palindrome (577626775).

The spelling of 253115423 in words is "two hundred fifty-three million, one hundred fifteen thousand, four hundred twenty-three".