53293531 has 4 divisors (see below), whose sum is σ = 53496432. Its totient is φ = 53090632.

The previous prime is 53293519. The next prime is 53293543. The reversal of 53293531 is 13539235.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13539235 = 5 ⋅2707847.

It is an interprime number because it is at equal distance from previous prime (53293519) and next prime (53293543).

It is a cyclic number.

It is not a de Polignac number, because 53293531 - 2¹³ = 53285339 is a prime.

It is a super-2 number, since 2×53293531² = 5680400892895922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53293493 and 53293502.

It is not an unprimeable number, because it can be changed into a prime (53293501) 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, 101056 + ... + 101581.

It is an arithmetic number, because the mean of its divisors is an integer number (13374108).

Almost surely, 2^53293531 is an apocalyptic number.

53293531 is a deficient number, since it is larger than the sum of its proper divisors (202901).

53293531 is a wasteful number, since it uses less digits than its factorization.

53293531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202900.

The product of its digits is 12150, while the sum is 31.

The square root of 53293531 is about 7300.2418453090. The cubic root of 53293531 is about 376.3207496745.

It can be divided in two parts, 53293 and 531, that added together give a square (53824 = 232²).

The spelling of 53293531 in words is "fifty-three million, two hundred ninety-three thousand, five hundred thirty-one".