20052331 has 4 divisors (see below), whose sum is σ = 21594832. Its totient is φ = 18509832.

The previous prime is 20052293. The next prime is 20052337. The reversal of 20052331 is 13325002.

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

It is a cyclic number.

It is not a de Polignac number, because 20052331 - 2⁹ = 20051819 is a prime.

It is a super-2 number, since 2×20052331² = 804191957067122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20052337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 771231 + ... + 771256.

It is an arithmetic number, because the mean of its divisors is an integer number (5398708).

Almost surely, 2^20052331 is an apocalyptic number.

20052331 is a deficient number, since it is larger than the sum of its proper divisors (1542501).

20052331 is a wasteful number, since it uses less digits than its factorization.

20052331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542500.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 20052331 is about 4477.9829164480. The cubic root of 20052331 is about 271.6783024528.

Adding to 20052331 its reverse (13325002), we get a palindrome (33377333).

The spelling of 20052331 in words is "twenty million, fifty-two thousand, three hundred thirty-one".