25728337 has 8 divisors (see below), whose sum is σ = 27143360. Its totient is φ = 24319440.

The previous prime is 25728331. The next prime is 25728347. The reversal of 25728337 is 73382752.

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

It is a cyclic number.

It is not a de Polignac number, because 25728337 - 2¹⁵ = 25695569 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25728296 and 25728305.

It is not an unprimeable number, because it can be changed into a prime (25728331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9028 + ... + 11530.

It is an arithmetic number, because the mean of its divisors is an integer number (3392920).

Almost surely, 2^25728337 is an apocalyptic number.

25728337 is the 2929-th hex number.

It is an amenable number.

25728337 is a deficient number, since it is larger than the sum of its proper divisors (1415023).

25728337 is a wasteful number, since it uses less digits than its factorization.

25728337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3063.

The product of its digits is 70560, while the sum is 37.

The square root of 25728337 is about 5072.3108146091. The cubic root of 25728337 is about 295.2141966339.

The spelling of 25728337 in words is "twenty-five million, seven hundred twenty-eight thousand, three hundred thirty-seven".