51210365131551 has 16 divisors (see below), whose sum is σ = 72660287520000. Its totient is φ = 31970526496128.

The previous prime is 51210365131529. The next prime is 51210365131559. The reversal of 51210365131551 is 15513156301215.

It is not a de Polignac number, because 51210365131551 - 2¹⁰ = 51210365130527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51210365131559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2522916501 + ... + 2522936798.

It is an arithmetic number, because the mean of its divisors is an integer number (4541267970000).

Almost surely, 2^{51210365131551} is an apocalyptic number.

51210365131551 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

51210365131551 is a deficient number, since it is larger than the sum of its proper divisors (21449922388449).

51210365131551 is a wasteful number, since it uses less digits than its factorization.

51210365131551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5045853518.

The product of its (nonzero) digits is 67500, while the sum is 39.

The spelling of 51210365131551 in words is "fifty-one trillion, two hundred ten billion, three hundred sixty-five million, one hundred thirty-one thousand, five hundred fifty-one".