180725055881 has 8 divisors (see below), whose sum is σ = 183211776384. Its totient is φ = 178238633760.

The previous prime is 180725055869. The next prime is 180725055943. The reversal of 180725055881 is 188550527081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 180725055881 - 2²² = 180720861577 is a prime.

It is a super-2 number, since 2×180725055881² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180725055811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1324220 + ... + 1454306.

It is an arithmetic number, because the mean of its divisors is an integer number (22901472048).

Almost surely, 2^180725055881 is an apocalyptic number.

It is an amenable number.

180725055881 is a deficient number, since it is larger than the sum of its proper divisors (2486720503).

180725055881 is a wasteful number, since it uses less digits than its factorization.

180725055881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149191.

The product of its (nonzero) digits is 896000, while the sum is 50.

The spelling of 180725055881 in words is "one hundred eighty billion, seven hundred twenty-five million, fifty-five thousand, eight hundred eighty-one".