25732090 has 8 divisors (see below), whose sum is σ = 46317780. Its totient is φ = 10292832.

The previous prime is 25732081. The next prime is 25732121. The reversal of 25732090 is 9023752.

It can be written as a sum of positive squares in 2 ways, for example, as 23707161 + 2024929 = 4869^2 + 1423^2 .

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

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, 1286595 + ... + 1286614.

Almost surely, 2^25732090 is an apocalyptic number.

25732090 is a deficient number, since it is larger than the sum of its proper divisors (20585690).

25732090 is a wasteful number, since it uses less digits than its factorization.

25732090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573216.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 25732090 is about 5072.6807508457. The cubic root of 25732090 is about 295.2285502629.

The spelling of 25732090 in words is "twenty-five million, seven hundred thirty-two thousand, ninety".