55704685231 has 4 divisors (see below), whose sum is σ = 59989661032. Its totient is φ = 51419709432.

The previous prime is 55704685229. The next prime is 55704685259. The reversal of 55704685231 is 13258640755.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13258640755 = 5 ⋅2651728151.

It is not a de Polignac number, because 55704685231 - 2¹ = 55704685229 is a prime.

It is a super-2 number, since 2×55704685231² (a number of 22 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 (55704688231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2142487881 + ... + 2142487906.

It is an arithmetic number, because the mean of its divisors is an integer number (14997415258).

Almost surely, 2^55704685231 is an apocalyptic number.

55704685231 is a deficient number, since it is larger than the sum of its proper divisors (4284975801).

55704685231 is a wasteful number, since it uses less digits than its factorization.

55704685231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4284975800.

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 55704685231 in words is "fifty-five billion, seven hundred four million, six hundred eighty-five thousand, two hundred thirty-one".