28752455 has 8 divisors (see below), whose sum is σ = 34538400. Its totient is φ = 22978336.

The previous prime is 28752443. The next prime is 28752463. The reversal of 28752455 is 55425782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28752455 - 2¹⁰ = 28751431 is a prime.

It is a congruent number.

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, 3806 + ... + 8484.

It is an arithmetic number, because the mean of its divisors is an integer number (4317300).

Almost surely, 2^28752455 is an apocalyptic number.

28752455 is a deficient number, since it is larger than the sum of its proper divisors (5785945).

28752455 is a wasteful number, since it uses less digits than its factorization.

28752455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5913.

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

The square root of 28752455 is about 5362.1315724253. The cubic root of 28752455 is about 306.3550032828.

The spelling of 28752455 in words is "twenty-eight million, seven hundred fifty-two thousand, four hundred fifty-five".