550554331 has 4 divisors (see below), whose sum is σ = 550613952. Its totient is φ = 550494712.

The previous prime is 550554293. The next prime is 550554337. The reversal of 550554331 is 133455055.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550554331 is a prime.

It is a super-2 number, since 2×550554331² = 606220142765715122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 550554293 and 550554302.

It is not an unprimeable number, because it can be changed into a prime (550554337) 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, 12676 + ... + 35521.

It is an arithmetic number, because the mean of its divisors is an integer number (137653488).

Almost surely, 2^550554331 is an apocalyptic number.

550554331 is a deficient number, since it is larger than the sum of its proper divisors (59621).

550554331 is a wasteful number, since it uses less digits than its factorization.

550554331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59620.

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 550554331 is about 23463.8941993864. The cubic root of 550554331 is about 819.5964358617.

The spelling of 550554331 in words is "five hundred fifty million, five hundred fifty-four thousand, three hundred thirty-one".