28883025 has 36 divisors (see below), whose sum is σ = 52165932. Its totient is φ = 15275520.

The previous prime is 28883003. The next prime is 28883027. The reversal of 28883025 is 52038882.

It can be written as a sum of positive squares in 6 ways, for example, as 3873024 + 25010001 = 1968^2 + 5001^2 .

It is not a de Polignac number, because 28883025 - 2⁵ = 28882993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28883027) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 30357 + ... + 31293.

Almost surely, 2^28883025 is an apocalyptic number.

28883025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28883025 is a deficient number, since it is larger than the sum of its proper divisors (23282907).

28883025 is a wasteful number, since it uses less digits than its factorization.

28883025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090 (or 1082 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 28883025 is about 5374.2929767552. The cubic root of 28883025 is about 306.8180405536.

The spelling of 28883025 in words is "twenty-eight million, eight hundred eighty-three thousand, twenty-five".