51010231351501 has 4 divisors (see below), whose sum is σ = 51029215437312. Its totient is φ = 50991247265692.

The previous prime is 51010231351493. The next prime is 51010231351507. The reversal of 51010231351501 is 10515313201015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51010231351501 - 2³ = 51010231351493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51010231351501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51010231351507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9492038875 + ... + 9492044248.

It is an arithmetic number, because the mean of its divisors is an integer number (12757303859328).

Almost surely, 2^{51010231351501} is an apocalyptic number.

It is an amenable number.

51010231351501 is a deficient number, since it is larger than the sum of its proper divisors (18984085811).

51010231351501 is a wasteful number, since it uses less digits than its factorization.

51010231351501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18984085810.

The product of its (nonzero) digits is 2250, while the sum is 28.

Adding to 51010231351501 its reverse (10515313201015), we get a palindrome (61525544552516).

The spelling of 51010231351501 in words is "fifty-one trillion, ten billion, two hundred thirty-one million, three hundred fifty-one thousand, five hundred one".