25548839 has 2 divisors, whose sum is σ = 25548840. Its totient is φ = 25548838.

The previous prime is 25548827. The next prime is 25548851. The reversal of 25548839 is 93884552.

It is a balanced prime because it is at equal distance from previous prime (25548827) and next prime (25548851).

It is a cyclic number.

It is not a de Polignac number, because 25548839 - 2⁴ = 25548823 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25548839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25548869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12774419 + 12774420.

It is an arithmetic number, because the mean of its divisors is an integer number (12774420).

Almost surely, 2^25548839 is an apocalyptic number.

25548839 is a deficient number, since it is larger than the sum of its proper divisors (1).

25548839 is an equidigital number, since it uses as much as digits as its factorization.

25548839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 44.

The square root of 25548839 is about 5054.5859375423. The cubic root of 25548839 is about 294.5260569414.

It can be divided in two parts, 255 and 48839, that added together give a palindrome (49094).

The spelling of 25548839 in words is "twenty-five million, five hundred forty-eight thousand, eight hundred thirty-nine".