52115015873681 has 4 divisors (see below), whose sum is σ = 54857911446000. Its totient is φ = 49372120301364.

The previous prime is 52115015873653. The next prime is 52115015873689. The reversal of 52115015873681 is 18637851051125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52115015873681 - 2¹⁸ = 52115015611537 is a prime.

It is a super-2 number, since 2×52115015873681² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52115015873689) 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, 1371447786131 + ... + 1371447786168.

It is an arithmetic number, because the mean of its divisors is an integer number (13714477861500).

Almost surely, 2^{52115015873681} is an apocalyptic number.

It is an amenable number.

52115015873681 is a deficient number, since it is larger than the sum of its proper divisors (2742895572319).

52115015873681 is a wasteful number, since it uses less digits than its factorization.

52115015873681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2742895572318.

The product of its (nonzero) digits is 2016000, while the sum is 53.

The spelling of 52115015873681 in words is "fifty-two trillion, one hundred fifteen billion, fifteen million, eight hundred seventy-three thousand, six hundred eighty-one".