28572554 has 16 divisors (see below), whose sum is σ = 44011968. Its totient is φ = 13904352.

The previous prime is 28572539. The next prime is 28572571. The reversal of 28572554 is 45527582.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38939 + ... + 39665.

It is an arithmetic number, because the mean of its divisors is an integer number (2750748).

Almost surely, 2^28572554 is an apocalyptic number.

28572554 is a deficient number, since it is larger than the sum of its proper divisors (15439414).

28572554 is a wasteful number, since it uses less digits than its factorization.

28572554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229.

The product of its digits is 112000, while the sum is 38.

The square root of 28572554 is about 5345.3301114150. The cubic root of 28572554 is about 305.7147226618.

The spelling of 28572554 in words is "twenty-eight million, five hundred seventy-two thousand, five hundred fifty-four".