53913243 has 16 divisors (see below), whose sum is σ = 73633536. Its totient is φ = 35075040.

The previous prime is 53913229. The next prime is 53913257. The reversal of 53913243 is 34231935.

It is an interprime number because it is at equal distance from previous prime (53913229) and next prime (53913257).

It is not a de Polignac number, because 53913243 - 2⁴ = 53913227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53913243.

It is not an unprimeable number, because it can be changed into a prime (53913283) 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, 32746 + ... + 34352.

It is an arithmetic number, because the mean of its divisors is an integer number (4602096).

Almost surely, 2^53913243 is an apocalyptic number.

53913243 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

53913243 is a deficient number, since it is larger than the sum of its proper divisors (19720293).

53913243 is a wasteful number, since it uses less digits than its factorization.

53913243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874.

The product of its digits is 9720, while the sum is 30.

The square root of 53913243 is about 7342.5637893041. The cubic root of 53913243 is about 377.7737861522.

The spelling of 53913243 in words is "fifty-three million, nine hundred thirteen thousand, two hundred forty-three".