53280281 has 4 divisors (see below), whose sum is σ = 54413952. Its totient is φ = 52146612.

The previous prime is 53280263. The next prime is 53280307. The reversal of 53280281 is 18208235.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18208235 = 5 ⋅3641647.

It is a cyclic number.

It is not a de Polignac number, because 53280281 - 2¹⁸ = 53018137 is a prime.

It is a super-2 number, since 2×53280281² = 5677576686877922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53280251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566765 + ... + 566858.

It is an arithmetic number, because the mean of its divisors is an integer number (13603488).

Almost surely, 2^53280281 is an apocalyptic number.

It is an amenable number.

53280281 is a deficient number, since it is larger than the sum of its proper divisors (1133671).

53280281 is a wasteful number, since it uses less digits than its factorization.

53280281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133670.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 53280281 is about 7299.3342847139. The cubic root of 53280281 is about 376.2895597526.

The spelling of 53280281 in words is "fifty-three million, two hundred eighty thousand, two hundred eighty-one".