2231143550 has 24 divisors (see below), whose sum is σ = 4211872536. Its totient is φ = 879135840.

The previous prime is 2231143513. The next prime is 2231143561. The reversal of 2231143550 is 553411322.

It is a happy number.

It is a super-3 number, since 3×2231143550³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 329657 + ... + 336356.

It is an arithmetic number, because the mean of its divisors is an integer number (175494689).

Almost surely, 2^2231143550 is an apocalyptic number.

2231143550 is a deficient number, since it is larger than the sum of its proper divisors (1980728986).

2231143550 is a wasteful number, since it uses less digits than its factorization.

2231143550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666092 (or 666087 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2231143550 is about 47234.9822695002. The cubic root of 2231143550 is about 1306.6998395744.

Adding to 2231143550 its reverse (553411322), we get a palindrome (2784554872).

The spelling of 2231143550 in words is "two billion, two hundred thirty-one million, one hundred forty-three thousand, five hundred fifty".