550154523431 has 4 divisors (see below), whose sum is σ = 560534797512. Its totient is φ = 539774249352.

The previous prime is 550154523409. The next prime is 550154523433. The reversal of 550154523431 is 134325451055.

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

It is a cyclic number.

It is not a de Polignac number, because 550154523431 - 2¹⁸ = 550154261287 is a prime.

It is a super-2 number, since 2×550154523431² (a number of 24 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 (550154523433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5190136961 + ... + 5190137066.

It is an arithmetic number, because the mean of its divisors is an integer number (140133699378).

Almost surely, 2^550154523431 is an apocalyptic number.

550154523431 is a deficient number, since it is larger than the sum of its proper divisors (10380274081).

550154523431 is a wasteful number, since it uses less digits than its factorization.

550154523431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10380274080.

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 550154523431 its reverse (134325451055), we get a palindrome (684479974486).

The spelling of 550154523431 in words is "five hundred fifty billion, one hundred fifty-four million, five hundred twenty-three thousand, four hundred thirty-one".