25485646 has 4 divisors (see below), whose sum is σ = 38228472. Its totient is φ = 12742822.

The previous prime is 25485623. The next prime is 25485667. The reversal of 25485646 is 64658452.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 25485599 and 25485608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6371410 + ... + 6371413.

It is an arithmetic number, because the mean of its divisors is an integer number (9557118).

Almost surely, 2^25485646 is an apocalyptic number.

25485646 is a deficient number, since it is larger than the sum of its proper divisors (12742826).

25485646 is a wasteful number, since it uses less digits than its factorization.

25485646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12742825.

The product of its digits is 230400, while the sum is 40.

The square root of 25485646 is about 5048.3310113343. The cubic root of 25485646 is about 294.2830276160.

The spelling of 25485646 in words is "twenty-five million, four hundred eighty-five thousand, six hundred forty-six".