20455259051 has 2 divisors, whose sum is σ = 20455259052. Its totient is φ = 20455259050.

The previous prime is 20455259029. The next prime is 20455259053. The reversal of 20455259051 is 15095255402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20455259051 - 2¹⁸ = 20454996907 is a prime.

Together with 20455259053, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20455258996 and 20455259014.

It is not a weakly prime, because it can be changed into another prime (20455259053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10227629525 + 10227629526.

It is an arithmetic number, because the mean of its divisors is an integer number (10227629526).

Almost surely, 2^20455259051 is an apocalyptic number.

20455259051 is a deficient number, since it is larger than the sum of its proper divisors (1).

20455259051 is an equidigital number, since it uses as much as digits as its factorization.

20455259051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 20455259051 in words is "twenty billion, four hundred fifty-five million, two hundred fifty-nine thousand, fifty-one".