53012743 has 4 divisors (see below), whose sum is σ = 60586000. Its totient is φ = 45439488.

The previous prime is 53012719. The next prime is 53012747. The reversal of 53012743 is 34721035.

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 53012743 - 2⁵ = 53012711 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 (53012747) 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, 3786618 + ... + 3786631.

It is an arithmetic number, because the mean of its divisors is an integer number (15146500).

Almost surely, 2^53012743 is an apocalyptic number.

53012743 is a deficient number, since it is larger than the sum of its proper divisors (7573257).

53012743 is an equidigital number, since it uses as much as digits as its factorization.

53012743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7573256.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 53012743 is about 7280.9850295135. The cubic root of 53012743 is about 375.6586776319.

Adding to 53012743 its reverse (34721035), we get a palindrome (87733778).

The spelling of 53012743 in words is "fifty-three million, twelve thousand, seven hundred forty-three".