25776253 has 2 divisors, whose sum is σ = 25776254. Its totient is φ = 25776252.

The previous prime is 25776251. The next prime is 25776259. The reversal of 25776253 is 35267752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25775929 + 324 = 5077^2 + 18^2 .

It is a cyclic number.

It is not a de Polignac number, because 25776253 - 2¹ = 25776251 is a prime.

Together with 25776251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25776251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12888126 + 12888127.

It is an arithmetic number, because the mean of its divisors is an integer number (12888127).

Almost surely, 2^25776253 is an apocalyptic number.

It is an amenable number.

25776253 is a deficient number, since it is larger than the sum of its proper divisors (1).

25776253 is an equidigital number, since it uses as much as digits as its factorization.

25776253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88200, while the sum is 37.

The square root of 25776253 is about 5077.0319085072. The cubic root of 25776253 is about 295.3973502139.

The spelling of 25776253 in words is "twenty-five million, seven hundred seventy-six thousand, two hundred fifty-three".