51243433115 has 32 divisors (see below), whose sum is σ = 76976542080. Its totient is φ = 31930988544.

The previous prime is 51243433103. The next prime is 51243433127. The reversal of 51243433115 is 51133434215.

It is an interprime number because it is at equal distance from previous prime (51243433103) and next prime (51243433127).

It is not a de Polignac number, because 51243433115 - 2¹⁰ = 51243432091 is a prime.

It is a super-2 number, since 2×51243433115² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1467632 + ... + 1502141.

It is an arithmetic number, because the mean of its divisors is an integer number (2405516940).

Almost surely, 2^51243433115 is an apocalyptic number.

51243433115 is a deficient number, since it is larger than the sum of its proper divisors (25733108965).

51243433115 is a wasteful number, since it uses less digits than its factorization.

51243433115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969831.

The product of its digits is 21600, while the sum is 32.

The spelling of 51243433115 in words is "fifty-one billion, two hundred forty-three million, four hundred thirty-three thousand, one hundred fifteen".