53280999 has 36 divisors (see below), whose sum is σ = 82227288. Its totient is φ = 33203520.

The previous prime is 53280989. The next prime is 53281001. The reversal of 53280999 is 99908235.

It is not a de Polignac number, because 53280999 - 2⁵ = 53280967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53280919) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 873429 + ... + 873489.

Almost surely, 2^53280999 is an apocalyptic number.

53280999 is a deficient number, since it is larger than the sum of its proper divisors (28946289).

53280999 is a wasteful number, since it uses less digits than its factorization.

53280999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 53280999 is about 7299.3834671156. The cubic root of 53280999 is about 376.2912500257.

The spelling of 53280999 in words is "fifty-three million, two hundred eighty thousand, nine hundred ninety-nine".