20331252055 has 4 divisors (see below), whose sum is σ = 24397502472. Its totient is φ = 16265001640.

The previous prime is 20331252031. The next prime is 20331252061. The reversal of 20331252055 is 55025213302.

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

It is not a de Polignac number, because 20331252055 - 2⁹ = 20331251543 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 3 ways as a sum of consecutive naturals, for example, 2033125201 + ... + 2033125210.

It is an arithmetic number, because the mean of its divisors is an integer number (6099375618).

Almost surely, 2^20331252055 is an apocalyptic number.

20331252055 is a deficient number, since it is larger than the sum of its proper divisors (4066250417).

20331252055 is an equidigital number, since it uses as much as digits as its factorization.

20331252055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066250416.

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 20331252055 its reverse (55025213302), we get a palindrome (75356465357).

The spelling of 20331252055 in words is "twenty billion, three hundred thirty-one million, two hundred fifty-two thousand, fifty-five".