25540510532039 has 2 divisors, whose sum is σ = 25540510532040. Its totient is φ = 25540510532038.

The previous prime is 25540510531981. The next prime is 25540510532077. The reversal of 25540510532039 is 93023501504552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25540510532039 - 2¹⁶ = 25540510466503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25540516532039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12770255266019 + 12770255266020.

It is an arithmetic number, because the mean of its divisors is an integer number (12770255266020).

Almost surely, 2^{25540510532039} is an apocalyptic number.

25540510532039 is a deficient number, since it is larger than the sum of its proper divisors (1).

25540510532039 is an equidigital number, since it uses as much as digits as its factorization.

25540510532039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810000, while the sum is 44.

The spelling of 25540510532039 in words is "twenty-five trillion, five hundred forty billion, five hundred ten million, five hundred thirty-two thousand, thirty-nine".