20052147553 has 4 divisors (see below), whose sum is σ = 21107523760. Its totient is φ = 18996771348.

The previous prime is 20052147517. The next prime is 20052147589. The reversal of 20052147553 is 35574125002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (20052147517) and next prime (20052147589).

It is a cyclic number.

It is not a de Polignac number, because 20052147553 - 2²¹ = 20050050401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20052147593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527688075 + ... + 527688112.

It is an arithmetic number, because the mean of its divisors is an integer number (5276880940).

Almost surely, 2^20052147553 is an apocalyptic number.

It is an amenable number.

20052147553 is a deficient number, since it is larger than the sum of its proper divisors (1055376207).

20052147553 is a wasteful number, since it uses less digits than its factorization.

20052147553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055376206.

The product of its (nonzero) digits is 42000, while the sum is 34.

The spelling of 20052147553 in words is "twenty billion, fifty-two million, one hundred forty-seven thousand, five hundred fifty-three".