52101250656761 has 4 divisors (see below), whose sum is σ = 52104294504612. Its totient is φ = 52098206808912.

The previous prime is 52101250656691. The next prime is 52101250656773. The reversal of 52101250656761 is 16765605210125.

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 16917846623161 + 35183404033600 = 4113131^2 + 5931560^2 .

It is a cyclic number.

It is not a de Polignac number, because 52101250656761 - 2¹⁸ = 52101250394617 is a prime.

It is a super-2 number, since 2×52101250656761² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52101250652761) 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, 1521898250 + ... + 1521932483.

It is an arithmetic number, because the mean of its divisors is an integer number (13026073626153).

Almost surely, 2^{52101250656761} is an apocalyptic number.

It is an amenable number.

52101250656761 is a deficient number, since it is larger than the sum of its proper divisors (3043847851).

52101250656761 is a wasteful number, since it uses less digits than its factorization.

52101250656761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3043847850.

The product of its (nonzero) digits is 756000, while the sum is 47.

Adding to 52101250656761 its reverse (16765605210125), we get a palindrome (68866855866886).

The spelling of 52101250656761 in words is "fifty-two trillion, one hundred one billion, two hundred fifty million, six hundred fifty-six thousand, seven hundred sixty-one".