25353551 has 2 divisors, whose sum is σ = 25353552. Its totient is φ = 25353550.

The previous prime is 25353529. The next prime is 25353563. The reversal of 25353551 is 15535352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25353551 - 2⁶ = 25353487 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25353571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12676775 + 12676776.

It is an arithmetic number, because the mean of its divisors is an integer number (12676776).

Almost surely, 2^25353551 is an apocalyptic number.

25353551 is a deficient number, since it is larger than the sum of its proper divisors (1).

25353551 is an equidigital number, since it uses as much as digits as its factorization.

25353551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11250, while the sum is 29.

The square root of 25353551 is about 5035.2309778202. The cubic root of 25353551 is about 293.7737125267.

The spelling of 25353551 in words is "twenty-five million, three hundred fifty-three thousand, five hundred fifty-one".