28525127 has 4 divisors (see below), whose sum is σ = 28807656. Its totient is φ = 28242600.

The previous prime is 28525117. The next prime is 28525151. The reversal of 28525127 is 72152582.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28525127 - 2⁴ = 28525111 is a prime.

It is a super-2 number, since 2×28525127² = 1627365740732258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28525093 and 28525102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28525117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141113 + ... + 141314.

It is an arithmetic number, because the mean of its divisors is an integer number (7201914).

Almost surely, 2^28525127 is an apocalyptic number.

28525127 is a deficient number, since it is larger than the sum of its proper divisors (282529).

28525127 is a wasteful number, since it uses less digits than its factorization.

28525127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282528.

The product of its digits is 11200, while the sum is 32.

The square root of 28525127 is about 5340.8919667037. The cubic root of 28525127 is about 305.5454791069.

The spelling of 28525127 in words is "twenty-eight million, five hundred twenty-five thousand, one hundred twenty-seven".