28141425 has 60 divisors (see below), whose sum is σ = 56189980. Its totient is φ = 13841280.

The previous prime is 28141411. The next prime is 28141433. The reversal of 28141425 is 52414182.

It can be written as a sum of positive squares in 6 ways, for example, as 3370896 + 24770529 = 1836^2 + 4977^2 .

It is not a de Polignac number, because 28141425 - 2⁶ = 28141361 is a prime.

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

It is a Curzon 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, 25791 + ... + 26859.

Almost surely, 2^28141425 is an apocalyptic number.

28141425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28141425 is a deficient number, since it is larger than the sum of its proper divisors (28048555).

28141425 is a wasteful number, since it uses less digits than its factorization.

28141425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104 (or 1090 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 28141425 is about 5304.8491967256. The cubic root of 28141425 is about 304.1692883575.

The spelling of 28141425 in words is "twenty-eight million, one hundred forty-one thousand, four hundred twenty-five".