53436743 has 4 divisors (see below), whose sum is σ = 53821320. Its totient is φ = 53052168.

The previous prime is 53436739. The next prime is 53436767. The reversal of 53436743 is 34763435.

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 53436743 - 2² = 53436739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53436703) 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, 192080 + ... + 192357.

It is an arithmetic number, because the mean of its divisors is an integer number (13455330).

Almost surely, 2^53436743 is an apocalyptic number.

53436743 is a deficient number, since it is larger than the sum of its proper divisors (384577).

53436743 is a wasteful number, since it uses less digits than its factorization.

53436743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384576.

The product of its digits is 90720, while the sum is 35.

The square root of 53436743 is about 7310.0439807158. The cubic root of 53436743 is about 376.6575350420.

The spelling of 53436743 in words is "fifty-three million, four hundred thirty-six thousand, seven hundred forty-three".