25544089 has 2 divisors, whose sum is σ = 25544090. Its totient is φ = 25544088.

The previous prime is 25544063. The next prime is 25544111. The reversal of 25544089 is 98044552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21576025 + 3968064 = 4645^2 + 1992^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25544089 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25544009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12772044 + 12772045.

It is an arithmetic number, because the mean of its divisors is an integer number (12772045).

Almost surely, 2^25544089 is an apocalyptic number.

It is an amenable number.

25544089 is a deficient number, since it is larger than the sum of its proper divisors (1).

25544089 is an equidigital number, since it uses as much as digits as its factorization.

25544089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 25544089 is about 5054.1160453634. The cubic root of 25544089 is about 294.5078032029.

It can be divided in two parts, 255 and 44089, that added together give a palindrome (44344).

The spelling of 25544089 in words is "twenty-five million, five hundred forty-four thousand, eighty-nine".