28572056 has 8 divisors (see below), whose sum is σ = 53572620. Its totient is φ = 14286024.

The previous prime is 28572001. The next prime is 28572073. The reversal of 28572056 is 65027582.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1785746 + ... + 1785761.

Almost surely, 2^28572056 is an apocalyptic number.

It is an amenable number.

28572056 is a deficient number, since it is larger than the sum of its proper divisors (25000564).

28572056 is a wasteful number, since it uses less digits than its factorization.

28572056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571513 (or 3571509 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 28572056 is about 5345.2835284950. The cubic root of 28572056 is about 305.7129465189.

It can be divided in two parts, 2857 and 2056, that added together give a cube (4913 = 17³).

The spelling of 28572056 in words is "twenty-eight million, five hundred seventy-two thousand, fifty-six".