25252475475529 has 2 divisors, whose sum is σ = 25252475475530. Its totient is φ = 25252475475528.

The previous prime is 25252475475473. The next prime is 25252475475593. The reversal of 25252475475529 is 92557457425252.

It is an a-pointer prime, because the next prime (25252475475593) can be obtained adding 25252475475529 to its sum of digits (64).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21944540250000 + 3307935225529 = 4684500^2 + 1818773^2 .

It is a cyclic number.

It is not a de Polignac number, because 25252475475529 - 2²³ = 25252467086921 is a prime.

It is not a weakly prime, because it can be changed into another prime (25252475475329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12626237737764 + 12626237737765.

It is an arithmetic number, because the mean of its divisors is an integer number (12626237737765).

Almost surely, 2^{25252475475529} is an apocalyptic number.

It is an amenable number.

25252475475529 is a deficient number, since it is larger than the sum of its proper divisors (1).

25252475475529 is an equidigital number, since it uses as much as digits as its factorization.

25252475475529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800000, while the sum is 64.

The spelling of 25252475475529 in words is "twenty-five trillion, two hundred fifty-two billion, four hundred seventy-five million, four hundred seventy-five thousand, five hundred twenty-nine".