52551111145 has 48 divisors (see below), whose sum is σ = 72686460672. Its totient is φ = 36245543040.

The previous prime is 52551111139. The next prime is 52551111157. The reversal of 52551111145 is 54111115525.

It is not a de Polignac number, because 52551111145 - 2¹¹ = 52551109097 is a prime.

It is a super-2 number, since 2×52551111145² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1650244 + ... + 1681786.

It is an arithmetic number, because the mean of its divisors is an integer number (1514301264).

Almost surely, 2^52551111145 is an apocalyptic number.

It is an amenable number.

52551111145 is a deficient number, since it is larger than the sum of its proper divisors (20135349527).

52551111145 is a wasteful number, since it uses less digits than its factorization.

52551111145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31670 (or 31651 counting only the distinct ones).

The product of its digits is 5000, while the sum is 31.

The spelling of 52551111145 in words is "fifty-two billion, five hundred fifty-one million, one hundred eleven thousand, one hundred forty-five".