550400164523 has 8 divisors (see below), whose sum is σ = 601373269296. Its totient is φ = 499583180800.

The previous prime is 550400164519. The next prime is 550400164529. The reversal of 550400164523 is 325461004055.

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

It is not a de Polignac number, because 550400164523 - 2² = 550400164519 is a prime.

It is a super-2 number, since 2×550400164523² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550400164529) 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, 39022886 + ... + 39036987.

It is an arithmetic number, because the mean of its divisors is an integer number (75171658662).

Almost surely, 2^550400164523 is an apocalyptic number.

550400164523 is a deficient number, since it is larger than the sum of its proper divisors (50973104773).

550400164523 is a wasteful number, since it uses less digits than its factorization.

550400164523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78060525.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 550400164523 its reverse (325461004055), we get a palindrome (875861168578).

The spelling of 550400164523 in words is "five hundred fifty billion, four hundred million, one hundred sixty-four thousand, five hundred twenty-three".