53231563 has 16 divisors (see below), whose sum is σ = 67060224. Its totient is φ = 41045760.

The previous prime is 53231551. The next prime is 53231569. The reversal of 53231563 is 36513235.

It is not a de Polignac number, because 53231563 - 2⁹ = 53231051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53231569) 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, 3906 + ... + 11032.

It is an arithmetic number, because the mean of its divisors is an integer number (4191264).

Almost surely, 2^53231563 is an apocalyptic number.

53231563 is a deficient number, since it is larger than the sum of its proper divisors (13828661).

53231563 is a wasteful number, since it uses less digits than its factorization.

53231563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7242.

The product of its digits is 8100, while the sum is 28.

The square root of 53231563 is about 7295.9963678719. The cubic root of 53231563 is about 376.1748352259.

Adding to 53231563 its reverse (36513235), we get a palindrome (89744798).

It can be divided in two parts, 5323 and 1563, that added together give a palindrome (6886).

The spelling of 53231563 in words is "fifty-three million, two hundred thirty-one thousand, five hundred sixty-three".