253042415 has 4 divisors (see below), whose sum is σ = 303650904. Its totient is φ = 202433928.

The previous prime is 253042403. The next prime is 253042417. The reversal of 253042415 is 514240352.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253042415 - 2¹⁶ = 252976879 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 (253042417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25304237 + ... + 25304246.

It is an arithmetic number, because the mean of its divisors is an integer number (75912726).

Almost surely, 2^253042415 is an apocalyptic number.

253042415 is a deficient number, since it is larger than the sum of its proper divisors (50608489).

253042415 is an equidigital number, since it uses as much as digits as its factorization.

253042415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50608488.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 253042415 is about 15907.3069688115. The cubic root of 253042415 is about 632.5056965434.

Adding to 253042415 its reverse (514240352), we get a palindrome (767282767).

The spelling of 253042415 in words is "two hundred fifty-three million, forty-two thousand, four hundred fifteen".