25542371 has 2 divisors, whose sum is σ = 25542372. Its totient is φ = 25542370.

The previous prime is 25542329. The next prime is 25542373. The reversal of 25542371 is 17324552.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25542371 is a prime.

Together with 25542373, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25542373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12771185 + 12771186.

It is an arithmetic number, because the mean of its divisors is an integer number (12771186).

Almost surely, 2^25542371 is an apocalyptic number.

25542371 is a deficient number, since it is larger than the sum of its proper divisors (1).

25542371 is an equidigital number, since it uses as much as digits as its factorization.

25542371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 29.

The square root of 25542371 is about 5053.9460820234. The cubic root of 25542371 is about 294.5012005566.

The spelling of 25542371 in words is "twenty-five million, five hundred forty-two thousand, three hundred seventy-one".