25005277525469 has 2 divisors, whose sum is σ = 25005277525470. Its totient is φ = 25005277525468.

The previous prime is 25005277525453. The next prime is 25005277525511. The reversal of 25005277525469 is 96452577250052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24364461265369 + 640816260100 = 4936037^2 + 800510^2 .

It is a cyclic number.

It is not a de Polignac number, because 25005277525469 - 2⁴ = 25005277525453 is a prime.

It is a super-2 number, since 2×25005277525469² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25005277525169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12502638762734 + 12502638762735.

It is an arithmetic number, because the mean of its divisors is an integer number (12502638762735).

Almost surely, 2^{25005277525469} is an apocalyptic number.

It is an amenable number.

25005277525469 is a deficient number, since it is larger than the sum of its proper divisors (1).

25005277525469 is an equidigital number, since it uses as much as digits as its factorization.

25005277525469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920000, while the sum is 59.

The spelling of 25005277525469 in words is "twenty-five trillion, five billion, two hundred seventy-seven million, five hundred twenty-five thousand, four hundred sixty-nine".