51549222373 has 16 divisors (see below), whose sum is σ = 59268464640. Its totient is φ = 44341570800.

The previous prime is 51549222367. The next prime is 51549222391. The reversal of 51549222373 is 37322294515.

It is a cyclic number.

It is not a de Polignac number, because 51549222373 - 2⁵ = 51549222341 is a prime.

It is a super-2 number, since 2×51549222373² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51549222343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17436 + ... + 321562.

It is an arithmetic number, because the mean of its divisors is an integer number (3704279040).

Almost surely, 2^51549222373 is an apocalyptic number.

It is an amenable number.

51549222373 is a deficient number, since it is larger than the sum of its proper divisors (7719242267).

51549222373 is a wasteful number, since it uses less digits than its factorization.

51549222373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304968.

The product of its digits is 453600, while the sum is 43.

The spelling of 51549222373 in words is "fifty-one billion, five hundred forty-nine million, two hundred twenty-two thousand, three hundred seventy-three".