25980535 has 16 divisors (see below), whose sum is σ = 36360000. Its totient is φ = 17814048.

The previous prime is 25980527. The next prime is 25980541. The reversal of 25980535 is 53508952.

It is not a de Polignac number, because 25980535 - 2³ = 25980527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25980494 and 25980503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5860 + ... + 9289.

It is an arithmetic number, because the mean of its divisors is an integer number (2272500).

Almost surely, 2^25980535 is an apocalyptic number.

25980535 is a deficient number, since it is larger than the sum of its proper divisors (10379465).

25980535 is an equidigital number, since it uses as much as digits as its factorization.

25980535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15175 (or 15161 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 25980535 is about 5097.1104559348. The cubic root of 25980535 is about 296.1756589147.

The spelling of 25980535 in words is "twenty-five million, nine hundred eighty thousand, five hundred thirty-five".