20255976043 has 2 divisors, whose sum is σ = 20255976044. Its totient is φ = 20255976042.

The previous prime is 20255975977. The next prime is 20255976047. The reversal of 20255976043 is 34067955202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20255976043 - 2²¹ = 20253878891 is a prime.

It is a super-3 number, since 3×20255976043³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (20255976047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10127988021 + 10127988022.

It is an arithmetic number, because the mean of its divisors is an integer number (10127988022).

Almost surely, 2^20255976043 is an apocalyptic number.

20255976043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20255976043 is an equidigital number, since it uses as much as digits as its factorization.

20255976043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 20255976043 in words is "twenty billion, two hundred fifty-five million, nine hundred seventy-six thousand, forty-three".