25539363 has 24 divisors (see below), whose sum is σ = 39059280. Its totient is φ = 16035840.

The previous prime is 25539359. The next prime is 25539383. The reversal of 25539363 is 36393552.

It is not a de Polignac number, because 25539363 - 2² = 25539359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25539313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39523 + ... + 40163.

It is an arithmetic number, because the mean of its divisors is an integer number (1627470).

Almost surely, 2^25539363 is an apocalyptic number.

25539363 is a deficient number, since it is larger than the sum of its proper divisors (13519917).

25539363 is a wasteful number, since it uses less digits than its factorization.

25539363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899 (or 896 counting only the distinct ones).

The product of its digits is 72900, while the sum is 36.

The square root of 25539363 is about 5053.6484840163. The cubic root of 25539363 is about 294.4896394478.

The spelling of 25539363 in words is "twenty-five million, five hundred thirty-nine thousand, three hundred sixty-three".