20052147551 has 8 divisors (see below), whose sum is σ = 20082052704. Its totient is φ = 20022266880.

The previous prime is 20052147517. The next prime is 20052147589. The reversal of 20052147551 is 15574125002.

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 20052147551 - 2⁶ = 20052147487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20052147851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2165291 + ... + 2174531.

It is an arithmetic number, because the mean of its divisors is an integer number (2510256588).

Almost surely, 2^20052147551 is an apocalyptic number.

20052147551 is a deficient number, since it is larger than the sum of its proper divisors (29905153).

20052147551 is a wasteful number, since it uses less digits than its factorization.

20052147551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12241.

The product of its (nonzero) digits is 14000, while the sum is 32.

The spelling of 20052147551 in words is "twenty billion, fifty-two million, one hundred forty-seven thousand, five hundred fifty-one".