28551064 has 8 divisors (see below), whose sum is σ = 53533260. Its totient is φ = 14275528.

The previous prime is 28551023. The next prime is 28551101. The reversal of 28551064 is 46015582.

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, 1784434 + ... + 1784449.

Almost surely, 2^28551064 is an apocalyptic number.

It is an amenable number.

28551064 is a deficient number, since it is larger than the sum of its proper divisors (24982196).

28551064 is a wasteful number, since it uses less digits than its factorization.

28551064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3568889 (or 3568885 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 28551064 is about 5343.3195674599. The cubic root of 28551064 is about 305.6380586812.

The spelling of 28551064 in words is "twenty-eight million, five hundred fifty-one thousand, sixty-four".