25540126043 has 2 divisors, whose sum is σ = 25540126044. Its totient is φ = 25540126042.

The previous prime is 25540126033. The next prime is 25540126091. The reversal of 25540126043 is 34062104552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25540126043 - 2⁶ = 25540125979 is a prime.

It is not a weakly prime, because it can be changed into another prime (25540126033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12770063021 + 12770063022.

It is an arithmetic number, because the mean of its divisors is an integer number (12770063022).

Almost surely, 2^25540126043 is an apocalyptic number.

25540126043 is a deficient number, since it is larger than the sum of its proper divisors (1).

25540126043 is an equidigital number, since it uses as much as digits as its factorization.

25540126043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 25540126043 in words is "twenty-five billion, five hundred forty million, one hundred twenty-six thousand, forty-three".