253473493 has 8 divisors (see below), whose sum is σ = 311967488. Its totient is φ = 200550384.

The previous prime is 253473481. The next prime is 253473497. The reversal of 253473493 is 394374352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253473493 - 2⁵ = 253473461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253473497) 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 7 ways as a sum of consecutive naturals, for example, 1392621 + ... + 1392802.

It is an arithmetic number, because the mean of its divisors is an integer number (38995936).

Almost surely, 2^253473493 is an apocalyptic number.

It is an amenable number.

253473493 is a deficient number, since it is larger than the sum of its proper divisors (58493995).

253473493 is a wasteful number, since it uses less digits than its factorization.

253473493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785443.

The product of its digits is 272160, while the sum is 40.

The square root of 253473493 is about 15920.8508880650. The cubic root of 253473493 is about 632.8646674624.

The spelling of 253473493 in words is "two hundred fifty-three million, four hundred seventy-three thousand, four hundred ninety-three".