20540756051 has 2 divisors, whose sum is σ = 20540756052. Its totient is φ = 20540756050.

The previous prime is 20540756029. The next prime is 20540756059. The reversal of 20540756051 is 15065704502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20540756051 - 2¹⁸ = 20540493907 is a prime.

It is a super-2 number, since 2×20540756051² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20540756059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10270378025 + 10270378026.

It is an arithmetic number, because the mean of its divisors is an integer number (10270378026).

Almost surely, 2^20540756051 is an apocalyptic number.

20540756051 is a deficient number, since it is larger than the sum of its proper divisors (1).

20540756051 is an equidigital number, since it uses as much as digits as its factorization.

20540756051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42000, while the sum is 35.

The spelling of 20540756051 in words is "twenty billion, five hundred forty million, seven hundred fifty-six thousand, fifty-one".