28119425 has 12 divisors (see below), whose sum is σ = 34960560. Its totient is φ = 22435920.

The previous prime is 28119391. The next prime is 28119433. The reversal of 28119425 is 52491182.

It is not a de Polignac number, because 28119425 - 2²⁴ = 11342209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28119391 and 28119400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9806 + ... + 12344.

It is an arithmetic number, because the mean of its divisors is an integer number (2913380).

Almost surely, 2^28119425 is an apocalyptic number.

28119425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28119425 is a deficient number, since it is larger than the sum of its proper divisors (6841135).

28119425 is a wasteful number, since it uses less digits than its factorization.

28119425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992 (or 2987 counting only the distinct ones).

The product of its digits is 5760, while the sum is 32.

The square root of 28119425 is about 5302.7752168086. The cubic root of 28119425 is about 304.0900046576.

The spelling of 28119425 in words is "twenty-eight million, one hundred nineteen thousand, four hundred twenty-five".