25478486 has 24 divisors (see below), whose sum is σ = 42389760. Its totient is φ = 11476080.

The previous prime is 25478483. The next prime is 25478491. The reversal of 25478486 is 68487452.

It is a super-4 number, since 4×25478486⁴ (a number of 31 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25478483) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 30320 + ... + 31148.

It is an arithmetic number, because the mean of its divisors is an integer number (1766240).

Almost surely, 2^25478486 is an apocalyptic number.

25478486 is a deficient number, since it is larger than the sum of its proper divisors (16911274).

25478486 is a wasteful number, since it uses less digits than its factorization.

25478486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980 (or 969 counting only the distinct ones).

The product of its digits is 430080, while the sum is 44.

The square root of 25478486 is about 5047.6218162616. The cubic root of 25478486 is about 294.2554661692.

The spelling of 25478486 in words is "twenty-five million, four hundred seventy-eight thousand, four hundred eighty-six".