28380053 has 16 divisors (see below), whose sum is σ = 32558400. Its totient is φ = 24520320.

The previous prime is 28380019. The next prime is 28380083. The reversal of 28380053 is 35008382.

It is a cyclic number.

It is not a de Polignac number, because 28380053 - 2⁸ = 28379797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28379998 and 28380025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28380083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21338 + ... + 22628.

It is an arithmetic number, because the mean of its divisors is an integer number (2034900).

Almost surely, 2^28380053 is an apocalyptic number.

It is an amenable number.

28380053 is a deficient number, since it is larger than the sum of its proper divisors (4178347).

28380053 is a wasteful number, since it uses less digits than its factorization.

28380053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 28380053 is about 5327.2932151328. The cubic root of 28380053 is about 305.0266141785.

The spelling of 28380053 in words is "twenty-eight million, three hundred eighty thousand, fifty-three".