28150425 has 18 divisors (see below), whose sum is σ = 50420942. Its totient is φ = 15013440.

The previous prime is 28150357. The next prime is 28150469. The reversal of 28150425 is 52405182.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 145161 + 28005264 = 381^2 + 5292^2 .

It is not a de Polignac number, because 28150425 - 2⁸ = 28150169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 62332 + ... + 62781.

Almost surely, 2^28150425 is an apocalyptic number.

28150425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28150425 is a deficient number, since it is larger than the sum of its proper divisors (22270517).

28150425 is a wasteful number, since it uses less digits than its factorization.

28150425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125129 (or 125121 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 28150425 is about 5305.6974093893. The cubic root of 28150425 is about 304.2017106889.

The spelling of 28150425 in words is "twenty-eight million, one hundred fifty thousand, four hundred twenty-five".