20313055 has 8 divisors (see below), whose sum is σ = 27857952. Its totient is φ = 13928928.

The previous prime is 20313047. The next prime is 20313067. The reversal of 20313055 is 55031302.

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 20313055 - 2³ = 20313047 is a prime.

It is a Duffinian number.

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, 290152 + ... + 290221.

It is an arithmetic number, because the mean of its divisors is an integer number (3482244).

Almost surely, 2^20313055 is an apocalyptic number.

20313055 is a deficient number, since it is larger than the sum of its proper divisors (7544897).

20313055 is an equidigital number, since it uses as much as digits as its factorization.

20313055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580385.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 20313055 is about 4507.0006656312. Note that the first 3 decimals coincide. The cubic root of 20313055 is about 272.8507057603.

Adding to 20313055 its reverse (55031302), we get a palindrome (75344357).

The spelling of 20313055 in words is "twenty million, three hundred thirteen thousand, fifty-five".