51030051433 has 4 divisors (see below), whose sum is σ = 51033451140. Its totient is φ = 51026651728.

The previous prime is 51030051431. The next prime is 51030051517. The reversal of 51030051433 is 33415003015.

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 10287436329 + 40742615104 = 101427^2 + 201848^2 .

It is a cyclic number.

It is not a de Polignac number, because 51030051433 - 2¹ = 51030051431 is a prime.

It is a super-2 number, since 2×51030051433² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51030051398 and 51030051407.

It is not an unprimeable number, because it can be changed into a prime (51030051431) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1677238 + ... + 1707391.

It is an arithmetic number, because the mean of its divisors is an integer number (12758362785).

Almost surely, 2^51030051433 is an apocalyptic number.

It is an amenable number.

51030051433 is a deficient number, since it is larger than the sum of its proper divisors (3399707).

51030051433 is a wasteful number, since it uses less digits than its factorization.

51030051433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3399706.

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 51030051433 its reverse (33415003015), we get a palindrome (84445054448).

The spelling of 51030051433 in words is "fifty-one billion, thirty million, fifty-one thousand, four hundred thirty-three".