25527750013 has 2 divisors, whose sum is σ = 25527750014. Its totient is φ = 25527750012.

The previous prime is 25527749983. The next prime is 25527750019. The reversal of 25527750013 is 31005772552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25523896644 + 3853369 = 159762^2 + 1963^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25527750013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25527750019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12763875006 + 12763875007.

It is an arithmetic number, because the mean of its divisors is an integer number (12763875007).

Almost surely, 2^25527750013 is an apocalyptic number.

It is an amenable number.

25527750013 is a deficient number, since it is larger than the sum of its proper divisors (1).

25527750013 is an equidigital number, since it uses as much as digits as its factorization.

25527750013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73500, while the sum is 37.

The spelling of 25527750013 in words is "twenty-five billion, five hundred twenty-seven million, seven hundred fifty thousand, thirteen".