253329845 has 4 divisors (see below), whose sum is σ = 303995820. Its totient is φ = 202663872.

The previous prime is 253329833. The next prime is 253329871. The reversal of 253329845 is 548923352.

253329845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 86248369 + 167081476 = 9287^2 + 12926^2 .

It is a cyclic number.

It is not a de Polignac number, because 253329845 - 2¹⁰ = 253328821 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25332980 + ... + 25332989.

It is an arithmetic number, because the mean of its divisors is an integer number (75998955).

Almost surely, 2^253329845 is an apocalyptic number.

It is an amenable number.

253329845 is a deficient number, since it is larger than the sum of its proper divisors (50665975).

253329845 is an equidigital number, since it uses as much as digits as its factorization.

253329845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50665974.

The product of its digits is 259200, while the sum is 41.

The square root of 253329845 is about 15916.3389320534. The cubic root of 253329845 is about 632.7450929308.

The spelling of 253329845 in words is "two hundred fifty-three million, three hundred twenty-nine thousand, eight hundred forty-five".