52721467501541 has 4 divisors (see below), whose sum is σ = 52721482054092. Its totient is φ = 52721452948992.

The previous prime is 52721467501517. The next prime is 52721467501543. The reversal of 52721467501541 is 14510576412725.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 28486237562500 + 24235229939041 = 5337250^2 + 4922929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52721467501541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52721467501541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52721467501543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2930255 + ... + 10678451.

It is an arithmetic number, because the mean of its divisors is an integer number (13180370513523).

Almost surely, 2^{52721467501541} is an apocalyptic number.

It is an amenable number.

52721467501541 is a deficient number, since it is larger than the sum of its proper divisors (14552551).

52721467501541 is an equidigital number, since it uses as much as digits as its factorization.

52721467501541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14552550.

The product of its (nonzero) digits is 2352000, while the sum is 50.

The spelling of 52721467501541 in words is "fifty-two trillion, seven hundred twenty-one billion, four hundred sixty-seven million, five hundred one thousand, five hundred forty-one".