53700243 has 4 divisors (see below), whose sum is σ = 71600328. Its totient is φ = 35800160.

The previous prime is 53700233. The next prime is 53700247. The reversal of 53700243 is 34200735.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53700243 - 2¹⁷ = 53569171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53700247) 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, 8950038 + ... + 8950043.

It is an arithmetic number, because the mean of its divisors is an integer number (17900082).

Almost surely, 2^53700243 is an apocalyptic number.

53700243 is a deficient number, since it is larger than the sum of its proper divisors (17900085).

53700243 is a wasteful number, since it uses less digits than its factorization.

53700243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17900084.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 53700243 is about 7328.0449643817. The cubic root of 53700243 is about 377.2756276723.

Adding to 53700243 its reverse (34200735), we get a palindrome (87900978).

The spelling of 53700243 in words is "fifty-three million, seven hundred thousand, two hundred forty-three".