20533140055 has 8 divisors (see below), whose sum is σ = 25212786192. Its totient is φ = 16044499968.

The previous prime is 20533140031. The next prime is 20533140091. The reversal of 20533140055 is 55004133502.

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 20533140055 - 2⁷ = 20533139927 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, 47751274 + ... + 47751703.

It is an arithmetic number, because the mean of its divisors is an integer number (3151598274).

Almost surely, 2^20533140055 is an apocalyptic number.

20533140055 is a deficient number, since it is larger than the sum of its proper divisors (4679646137).

20533140055 is an equidigital number, since it uses as much as digits as its factorization.

20533140055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95503025.

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

Adding to 20533140055 its reverse (55004133502), we get a palindrome (75537273557).

The spelling of 20533140055 in words is "twenty billion, five hundred thirty-three million, one hundred forty thousand, fifty-five".