253475423 has 4 divisors (see below), whose sum is σ = 268385760. Its totient is φ = 238565088.

The previous prime is 253475413. The next prime is 253475429. The reversal of 253475423 is 324574352.

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 253475423 - 2¹⁰ = 253474399 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 (253475429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7455143 + ... + 7455176.

It is an arithmetic number, because the mean of its divisors is an integer number (67096440).

Almost surely, 2^253475423 is an apocalyptic number.

253475423 is a deficient number, since it is larger than the sum of its proper divisors (14910337).

253475423 is a wasteful number, since it uses less digits than its factorization.

253475423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14910336.

The product of its digits is 100800, while the sum is 35.

The square root of 253475423 is about 15920.9115002879. The cubic root of 253475423 is about 632.8662737128.

The spelling of 253475423 in words is "two hundred fifty-three million, four hundred seventy-five thousand, four hundred twenty-three".