25480690 has 8 divisors (see below), whose sum is σ = 45865260. Its totient is φ = 10192272.

The previous prime is 25480687. The next prime is 25480717. The reversal of 25480690 is 9608452.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25431849 + 48841 = 5043^2 + 221^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×25480690² = 1298531125752200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1274025 + ... + 1274044.

Almost surely, 2^25480690 is an apocalyptic number.

25480690 is a deficient number, since it is larger than the sum of its proper divisors (20384570).

25480690 is a wasteful number, since it uses less digits than its factorization.

25480690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548076.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 25480690 is about 5047.8401321753. The cubic root of 25480690 is about 294.2639507176.

The spelling of 25480690 in words is "twenty-five million, four hundred eighty thousand, six hundred ninety".