55174120031 has 4 divisors (see below), whose sum is σ = 56078613864. Its totient is φ = 54269626200.

The previous prime is 55174119997. The next prime is 55174120033. The reversal of 55174120031 is 13002147155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55174120031 is a prime.

It is a super-2 number, since 2×55174120031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55174119976 and 55174120003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55174120033) 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, 452246825 + ... + 452246946.

It is an arithmetic number, because the mean of its divisors is an integer number (14019653466).

Almost surely, 2^55174120031 is an apocalyptic number.

55174120031 is a deficient number, since it is larger than the sum of its proper divisors (904493833).

55174120031 is an equidigital number, since it uses as much as digits as its factorization.

55174120031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904493832.

The product of its (nonzero) digits is 4200, while the sum is 29.

Adding to 55174120031 its reverse (13002147155), we get a palindrome (68176267186).

The spelling of 55174120031 in words is "fifty-five billion, one hundred seventy-four million, one hundred twenty thousand, thirty-one".