51003581011051 has 8 divisors (see below), whose sum is σ = 51093055578384. Its totient is φ = 50914110182400.

The previous prime is 51003581011007. The next prime is 51003581011081. The reversal of 51003581011051 is 15011018530015.

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 51003581011051 - 2¹⁹ = 51003580486763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51003581011081) 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, 27110751 + ... + 28930951.

It is an arithmetic number, because the mean of its divisors is an integer number (6386631947298).

Almost surely, 2^{51003581011051} is an apocalyptic number.

51003581011051 is a deficient number, since it is larger than the sum of its proper divisors (89474567333).

51003581011051 is a wasteful number, since it uses less digits than its factorization.

51003581011051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869341.

The product of its (nonzero) digits is 3000, while the sum is 31.

Adding to 51003581011051 its reverse (15011018530015), we get a palindrome (66014599541066).

The spelling of 51003581011051 in words is "fifty-one trillion, three billion, five hundred eighty-one million, eleven thousand, fifty-one".