53403522443 has 4 divisors (see below), whose sum is σ = 54411136128. Its totient is φ = 52395908760.

The previous prime is 53403522437. The next prime is 53403522451. The reversal of 53403522443 is 34422530435.

It is a happy number.

53403522443 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-53403522443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53403522143) 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, 503806763 + ... + 503806868.

It is an arithmetic number, because the mean of its divisors is an integer number (13602784032).

Almost surely, 2^53403522443 is an apocalyptic number.

53403522443 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

53403522443 is a deficient number, since it is larger than the sum of its proper divisors (1007613685).

53403522443 is a wasteful number, since it uses less digits than its factorization.

53403522443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007613684.

The product of its (nonzero) digits is 172800, while the sum is 35.

The spelling of 53403522443 in words is "fifty-three billion, four hundred three million, five hundred twenty-two thousand, four hundred forty-three".