52938816461 has 4 divisors (see below), whose sum is σ = 52971638172. Its totient is φ = 52905994752.

The previous prime is 52938816421. The next prime is 52938816533. The reversal of 52938816461 is 16461883925.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37694222500 + 15244593961 = 194150^2 + 123469^2 .

It is a cyclic number.

It is not a de Polignac number, because 52938816461 - 2¹⁰ = 52938815437 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 (52938816421) 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, 16408436 + ... + 16411661.

It is an arithmetic number, because the mean of its divisors is an integer number (13242909543).

Almost surely, 2^52938816461 is an apocalyptic number.

It is an amenable number.

52938816461 is a deficient number, since it is larger than the sum of its proper divisors (32821711).

52938816461 is a wasteful number, since it uses less digits than its factorization.

52938816461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32821710.

The product of its digits is 2488320, while the sum is 53.

The spelling of 52938816461 in words is "fifty-two billion, nine hundred thirty-eight million, eight hundred sixteen thousand, four hundred sixty-one".