28005053 has 8 divisors (see below), whose sum is σ = 29275776. Its totient is φ = 26738800.

The previous prime is 28005023. The next prime is 28005073. The reversal of 28005053 is 35050082.

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 28005053 - 2²² = 23810749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28005023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23123 + ... + 24303.

It is an arithmetic number, because the mean of its divisors is an integer number (3659472).

Almost surely, 2^28005053 is an apocalyptic number.

28005053 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28005053 is a deficient number, since it is larger than the sum of its proper divisors (1270723).

28005053 is a wasteful number, since it uses less digits than its factorization.

28005053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 28005053 is about 5291.9800642104. The cubic root of 28005053 is about 303.6771626175.

The spelling of 28005053 in words is "twenty-eight million, five thousand, fifty-three".