53040515443 has 4 divisors (see below), whose sum is σ = 53126481240. Its totient is φ = 52954549648.

The previous prime is 53040515431. The next prime is 53040515449. The reversal of 53040515443 is 34451504035.

53040515443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53040515443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53040515399 and 53040515408.

It is not an unprimeable number, because it can be changed into a prime (53040515449) 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, 42981973 + ... + 42983206.

It is an arithmetic number, because the mean of its divisors is an integer number (13281620310).

Almost surely, 2^53040515443 is an apocalyptic number.

53040515443 is a deficient number, since it is larger than the sum of its proper divisors (85965797).

53040515443 is an equidigital number, since it uses as much as digits as its factorization.

53040515443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85965796.

The product of its (nonzero) digits is 72000, while the sum is 34.

The spelling of 53040515443 in words is "fifty-three billion, forty million, five hundred fifteen thousand, four hundred forty-three".