51111150560101 has 4 divisors (see below), whose sum is σ = 51119280222912. Its totient is φ = 51103020897292.

The previous prime is 51111150560087. The next prime is 51111150560117. The reversal of 51111150560101 is 10106505111115.

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 51111150560101 - 2¹⁷ = 51111150429029 is a prime.

It is a super-2 number, since 2×51111150560101² (a number of 28 digits) contains 22 as substring.

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 51111150560101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51111150560801) 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, 4064821975 + ... + 4064834548.

It is an arithmetic number, because the mean of its divisors is an integer number (12779820055728).

Almost surely, 2^{51111150560101} is an apocalyptic number.

It is an amenable number.

51111150560101 is a deficient number, since it is larger than the sum of its proper divisors (8129662811).

51111150560101 is an equidigital number, since it uses as much as digits as its factorization.

51111150560101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8129662810.

The product of its (nonzero) digits is 750, while the sum is 28.

Adding to 51111150560101 its reverse (10106505111115), we get a palindrome (61217655671216).

The spelling of 51111150560101 in words is "fifty-one trillion, one hundred eleven billion, one hundred fifty million, five hundred sixty thousand, one hundred one".