253320020 has 24 divisors (see below), whose sum is σ = 532438368. Its totient is φ = 101239200.

The previous prime is 253320013. The next prime is 253320031. The reversal of 253320020 is 20023352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20915 + ... + 30725.

It is an arithmetic number, because the mean of its divisors is an integer number (22184932).

Almost surely, 2^253320020 is an apocalyptic number.

253320020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253320020 is an abundant number, since it is smaller than the sum of its proper divisors (279118348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253320020 is a wasteful number, since it uses less digits than its factorization.

253320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111 (or 11109 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 253320020 is about 15916.0302839621. The cubic root of 253320020 is about 632.7369128170.

Adding to 253320020 its reverse (20023352), we get a palindrome (273343372).

The spelling of 253320020 in words is "two hundred fifty-three million, three hundred twenty thousand, twenty".