51254043031 has 8 divisors (see below), whose sum is σ = 51437651904. Its totient is φ = 51070673760.

The previous prime is 51254043017. The next prime is 51254043041. The reversal of 51254043031 is 13034045215.

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 51254043031 - 2⁵ = 51254042999 is a prime.

It is a super-2 number, since 2×51254043031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51254043041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374301 + ... + 492553.

It is an arithmetic number, because the mean of its divisors is an integer number (6429706488).

Almost surely, 2^51254043031 is an apocalyptic number.

51254043031 is a deficient number, since it is larger than the sum of its proper divisors (183608873).

51254043031 is a wasteful number, since it uses less digits than its factorization.

51254043031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119801.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 51254043031 its reverse (13034045215), we get a palindrome (64288088246).

The spelling of 51254043031 in words is "fifty-one billion, two hundred fifty-four million, forty-three thousand, thirty-one".