28554751 has 4 divisors (see below), whose sum is σ = 29475904. Its totient is φ = 27633600.

The previous prime is 28554733. The next prime is 28554767. The reversal of 28554751 is 15745582.

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

It is a cyclic number.

It is not a de Polignac number, because 28554751 - 2⁵ = 28554719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28554751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28554151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460530 + ... + 460591.

It is an arithmetic number, because the mean of its divisors is an integer number (7368976).

Almost surely, 2^28554751 is an apocalyptic number.

28554751 is a deficient number, since it is larger than the sum of its proper divisors (921153).

28554751 is an equidigital number, since it uses as much as digits as its factorization.

28554751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921152.

The product of its digits is 56000, while the sum is 37.

The square root of 28554751 is about 5343.6645665685. The cubic root of 28554751 is about 305.6512145134.

The spelling of 28554751 in words is "twenty-eight million, five hundred fifty-four thousand, seven hundred fifty-one".