20550600047 has 2 divisors, whose sum is σ = 20550600048. Its totient is φ = 20550600046.

The previous prime is 20550600043. The next prime is 20550600061. The reversal of 20550600047 is 74000605502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20550600047 - 2² = 20550600043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20550599992 and 20550600019.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20550600043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10275300023 + 10275300024.

It is an arithmetic number, because the mean of its divisors is an integer number (10275300024).

Almost surely, 2^20550600047 is an apocalyptic number.

20550600047 is a deficient number, since it is larger than the sum of its proper divisors (1).

20550600047 is an equidigital number, since it uses as much as digits as its factorization.

20550600047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 29.

The spelling of 20550600047 in words is "twenty billion, five hundred fifty million, six hundred thousand, forty-seven".