53278593 has 16 divisors (see below), whose sum is σ = 72600000. Its totient is φ = 34744320.

The previous prime is 53278573. The next prime is 53278609. The reversal of 53278593 is 39587235.

It is not a de Polignac number, because 53278593 - 2⁶ = 53278529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53278513) 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, 42033 + ... + 43281.

It is an arithmetic number, because the mean of its divisors is an integer number (4537500).

Almost surely, 2^53278593 is an apocalyptic number.

It is an amenable number.

53278593 is a deficient number, since it is larger than the sum of its proper divisors (19321407).

53278593 is a wasteful number, since it uses less digits than its factorization.

53278593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552.

The product of its digits is 226800, while the sum is 42.

The square root of 53278593 is about 7299.2186568153. The cubic root of 53278593 is about 376.2855859029.

The spelling of 53278593 in words is "fifty-three million, two hundred seventy-eight thousand, five hundred ninety-three".