51430532431 has 8 divisors (see below), whose sum is σ = 51511007504. Its totient is φ = 51350120640.

The previous prime is 51430532411. The next prime is 51430532437. The reversal of 51430532431 is 13423503415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51430532431 - 2¹¹ = 51430530383 is a prime.

It is a super-2 number, since 2×51430532431² (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 = 51430532393 and 51430532402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51430532437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1763851 + ... + 1792771.

It is an arithmetic number, because the mean of its divisors is an integer number (6438875938).

Almost surely, 2^51430532431 is an apocalyptic number.

51430532431 is a deficient number, since it is larger than the sum of its proper divisors (80475073).

51430532431 is a wasteful number, since it uses less digits than its factorization.

51430532431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31641.

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 51430532431 in words is "fifty-one billion, four hundred thirty million, five hundred thirty-two thousand, four hundred thirty-one".