53244813 has 16 divisors (see below), whose sum is σ = 73921856. Its totient is φ = 34058880.

The previous prime is 53244811. The next prime is 53244827. The reversal of 53244813 is 31844235.

It is not a de Polignac number, because 53244813 - 2¹ = 53244811 is a prime.

It is a super-2 number, since 2×53244813² = 5670020222809938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53244811) 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, 4818 + ... + 11388.

It is an arithmetic number, because the mean of its divisors is an integer number (4620116).

Almost surely, 2^53244813 is an apocalyptic number.

It is an amenable number.

53244813 is a deficient number, since it is larger than the sum of its proper divisors (20677043).

53244813 is a wasteful number, since it uses less digits than its factorization.

53244813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6684.

The product of its digits is 11520, while the sum is 30.

The square root of 53244813 is about 7296.9043436241. The cubic root of 53244813 is about 376.2060441728.

The spelling of 53244813 in words is "fifty-three million, two hundred forty-four thousand, eight hundred thirteen".