28325554 has 4 divisors (see below), whose sum is σ = 42488334. Its totient is φ = 14162776.

The previous prime is 28325543. The next prime is 28325567. The reversal of 28325554 is 45552382.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20457529 + 7868025 = 4523^2 + 2805^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7081387 + ... + 7081390.

Almost surely, 2^28325554 is an apocalyptic number.

28325554 is a deficient number, since it is larger than the sum of its proper divisors (14162780).

28325554 is a wasteful number, since it uses less digits than its factorization.

28325554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14162779.

The product of its digits is 48000, while the sum is 34.

The square root of 28325554 is about 5322.1756829327. The cubic root of 28325554 is about 304.8312387181.

The spelling of 28325554 in words is "twenty-eight million, three hundred twenty-five thousand, five hundred fifty-four".