253453471 has 4 divisors (see below), whose sum is σ = 253546200. Its totient is φ = 253360744.

The previous prime is 253453433. The next prime is 253453511. The reversal of 253453471 is 174354352.

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 253453471 - 2⁹ = 253452959 is a prime.

It is a super-3 number, since 3×253453471³ (a number of 26 digits) contains 333 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 (253453271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42136 + ... + 47773.

It is an arithmetic number, because the mean of its divisors is an integer number (63386550).

Almost surely, 2^253453471 is an apocalyptic number.

253453471 is a deficient number, since it is larger than the sum of its proper divisors (92729).

253453471 is an equidigital number, since it uses as much as digits as its factorization.

253453471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92728.

The product of its digits is 50400, while the sum is 34.

The square root of 253453471 is about 15920.2220775968. Note that the first 3 decimals coincide. The cubic root of 253453471 is about 632.8480035897.

The spelling of 253453471 in words is "two hundred fifty-three million, four hundred fifty-three thousand, four hundred seventy-one".