28052325 has 60 divisors (see below), whose sum is σ = 59415840. Its totient is φ = 12817440.

The previous prime is 28052291. The next prime is 28052333. The reversal of 28052325 is 52325082.

It is not a de Polignac number, because 28052325 - 2⁷ = 28052197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 13186 + ... + 15164.

It is an arithmetic number, because the mean of its divisors is an integer number (990264).

Almost surely, 2^28052325 is an apocalyptic number.

28052325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28052325 is an abundant number, since it is smaller than the sum of its proper divisors (31363515).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28052325 is a wasteful number, since it uses less digits than its factorization.

28052325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008 (or 1994 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 28052325 is about 5296.4445621568. Note that the first 3 decimals coincide. The cubic root of 28052325 is about 303.8479336705.

The spelling of 28052325 in words is "twenty-eight million, fifty-two thousand, three hundred twenty-five".