25272551 has 2 divisors, whose sum is σ = 25272552. Its totient is φ = 25272550.

The previous prime is 25272497. The next prime is 25272553. The reversal of 25272551 is 15527252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25272551 - 2¹⁴ = 25256167 is a prime.

Together with 25272553, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25272553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12636275 + 12636276.

It is an arithmetic number, because the mean of its divisors is an integer number (12636276).

Almost surely, 2^25272551 is an apocalyptic number.

25272551 is a deficient number, since it is larger than the sum of its proper divisors (1).

25272551 is an equidigital number, since it uses as much as digits as its factorization.

25272551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7000, while the sum is 29.

The square root of 25272551 is about 5027.1812181381. The cubic root of 25272551 is about 293.4605275119.

The spelling of 25272551 in words is "twenty-five million, two hundred seventy-two thousand, five hundred fifty-one".