25527502501 has 2 divisors, whose sum is σ = 25527502502. Its totient is φ = 25527502500.

The previous prime is 25527502477. The next prime is 25527502529. The reversal of 25527502501 is 10520572552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19318220100 + 6209282401 = 138990^2 + 78799^2 .

It is a cyclic number.

It is not a de Polignac number, because 25527502501 - 2¹³ = 25527494309 is a prime.

It is a super-2 number, since 2×25527502501² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25527502531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12763751250 + 12763751251.

It is an arithmetic number, because the mean of its divisors is an integer number (12763751251).

Almost surely, 2^25527502501 is an apocalyptic number.

It is an amenable number.

25527502501 is a deficient number, since it is larger than the sum of its proper divisors (1).

25527502501 is an equidigital number, since it uses as much as digits as its factorization.

25527502501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35000, while the sum is 34.

The spelling of 25527502501 in words is "twenty-five billion, five hundred twenty-seven million, five hundred two thousand, five hundred one".