53143337 has 4 divisors (see below), whose sum is σ = 57231300. Its totient is φ = 49055376.

The previous prime is 53143333. The next prime is 53143367. The reversal of 53143337 is 73334135.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33686416 + 19456921 = 5804^2 + 4411^2 .

It is a cyclic number.

It is not a de Polignac number, because 53143337 - 2² = 53143333 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53143333) 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, 2043962 + ... + 2043987.

It is an arithmetic number, because the mean of its divisors is an integer number (14307825).

Almost surely, 2^53143337 is an apocalyptic number.

It is an amenable number.

53143337 is a deficient number, since it is larger than the sum of its proper divisors (4087963).

53143337 is a wasteful number, since it uses less digits than its factorization.

53143337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4087962.

The product of its digits is 11340, while the sum is 29.

The square root of 53143337 is about 7289.9476678506. The cubic root of 53143337 is about 375.9668962292.

The spelling of 53143337 in words is "fifty-three million, one hundred forty-three thousand, three hundred thirty-seven".