550551450431523 has 32 divisors (see below), whose sum is σ = 739375097421312. Its totient is φ = 364384011744000.

The previous prime is 550551450431519. The next prime is 550551450431527. The reversal of 550551450431523 is 325134054155055.

It is an interprime number because it is at equal distance from previous prime (550551450431519) and next prime (550551450431527).

It is not a de Polignac number, because 550551450431523 - 2² = 550551450431519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550551450431527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20183710761 + ... + 20183738037.

It is an arithmetic number, because the mean of its divisors is an integer number (23105471794416).

Almost surely, 2^{550551450431523} is an apocalyptic number.

550551450431523 is a deficient number, since it is larger than the sum of its proper divisors (188823646989789).

550551450431523 is a wasteful number, since it uses less digits than its factorization.

550551450431523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52635.

The product of its (nonzero) digits is 4500000, while the sum is 48.

The spelling of 550551450431523 in words is "five hundred fifty trillion, five hundred fifty-one billion, four hundred fifty million, four hundred thirty-one thousand, five hundred twenty-three".