28054075 has 12 divisors (see below), whose sum is σ = 39756880. Its totient is φ = 19236960.

The previous prime is 28054067. The next prime is 28054111. The reversal of 28054075 is 57045082.

It is not a de Polignac number, because 28054075 - 2³ = 28054067 is a prime.

It is a super-2 number, since 2×28054075² = 1574062248211250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 79980 + ... + 80329.

Almost surely, 2^28054075 is an apocalyptic number.

28054075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28054075 is a deficient number, since it is larger than the sum of its proper divisors (11702805).

28054075 is a wasteful number, since it uses less digits than its factorization.

28054075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160326 (or 160321 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 28054075 is about 5296.6097647457. The cubic root of 28054075 is about 303.8542518970.

The spelling of 28054075 in words is "twenty-eight million, fifty-four thousand, seventy-five".