20753313 has 12 divisors (see below), whose sum is σ = 32189040. Its totient is φ = 11858952.

The previous prime is 20753303. The next prime is 20753321. The reversal of 20753313 is 31335702.

It is not a de Polignac number, because 20753313 - 2⁵ = 20753281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20753303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70443 + ... + 70736.

It is an arithmetic number, because the mean of its divisors is an integer number (2682420).

Almost surely, 2^20753313 is an apocalyptic number.

It is an amenable number.

20753313 is a deficient number, since it is larger than the sum of its proper divisors (11435727).

20753313 is a wasteful number, since it uses less digits than its factorization.

20753313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141196 (or 141189 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 20753313 is about 4555.5804240514. The cubic root of 20753313 is about 274.8078569651.

The spelling of 20753313 in words is "twenty million, seven hundred fifty-three thousand, three hundred thirteen".