51502017060551 has 32 divisors (see below), whose sum is σ = 53302811063040. Its totient is φ = 49736551366656.

The previous prime is 51502017060499. The next prime is 51502017060553. The reversal of 51502017060551 is 15506071020515.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51502017060551 - 2¹⁴ = 51502017044167 is a prime.

It is a super-2 number, since 2×51502017060551² (a number of 28 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 (51502017060553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 544872671 + ... + 544967183.

It is an arithmetic number, because the mean of its divisors is an integer number (1665712845720).

Almost surely, 2^{51502017060551} is an apocalyptic number.

51502017060551 is a deficient number, since it is larger than the sum of its proper divisors (1800794002489).

51502017060551 is a wasteful number, since it uses less digits than its factorization.

51502017060551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95243.

The product of its (nonzero) digits is 52500, while the sum is 38.

The spelling of 51502017060551 in words is "fifty-one trillion, five hundred two billion, seventeen million, sixty thousand, five hundred fifty-one".