999999253 has 8 divisors (see below), whose sum is σ = 1091208096. Its totient is φ = 908840400.

The previous prime is 999999229. The next prime is 999999323. The reversal of 999999253 is 352999999.

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 999999253 - 2¹³ = 999991061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999999223) 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, 38350 + ... + 58912.

It is an arithmetic number, because the mean of its divisors is an integer number (136401012).

Almost surely, 2^999999253 is an apocalyptic number.

It is an amenable number.

999999253 is a deficient number, since it is larger than the sum of its proper divisors (91208843).

999999253 is a wasteful number, since it uses less digits than its factorization.

999999253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24995.

The product of its digits is 15943230, while the sum is 64.

The square root of 999999253 is about 31622.7647905745. The cubic root of 999999253 is about 999.9997509999. Note that the first 3 decimals are identical.

The spelling of 999999253 in words is "nine hundred ninety-nine million, nine hundred ninety-nine thousand, two hundred fifty-three".