25728955 has 8 divisors (see below), whose sum is σ = 35285472. Its totient is φ = 17642688.

The previous prime is 25728917. The next prime is 25728971. The reversal of 25728955 is 55982752.

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

It is not a de Polignac number, because 25728955 - 2⁷ = 25728827 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367522 + ... + 367591.

It is an arithmetic number, because the mean of its divisors is an integer number (4410684).

Almost surely, 2^25728955 is an apocalyptic number.

25728955 is a deficient number, since it is larger than the sum of its proper divisors (9556517).

25728955 is an equidigital number, since it uses as much as digits as its factorization.

25728955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735125.

The product of its digits is 252000, while the sum is 43.

The square root of 25728955 is about 5072.3717332230. The cubic root of 25728955 is about 295.2165603171.

The spelling of 25728955 in words is "twenty-five million, seven hundred twenty-eight thousand, nine hundred fifty-five".