1550155214 has 4 divisors (see below), whose sum is σ = 2325232824. Its totient is φ = 775077606.

The previous prime is 1550155213. The next prime is 1550155231. The reversal of 1550155214 is 4125510551.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550155213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387538802 + ... + 387538805.

It is an arithmetic number, because the mean of its divisors is an integer number (581308206).

Almost surely, 2^1550155214 is an apocalyptic number.

1550155214 is a deficient number, since it is larger than the sum of its proper divisors (775077610).

1550155214 is an equidigital number, since it uses as much as digits as its factorization.

1550155214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775077609.

The product of its (nonzero) digits is 5000, while the sum is 29.

The square root of 1550155214 is about 39372.0105404842. The cubic root of 1550155214 is about 1157.3331557183. Note that the first 3 decimals are identical.

Adding to 1550155214 its reverse (4125510551), we get a palindrome (5675665765).

The spelling of 1550155214 in words is "one billion, five hundred fifty million, one hundred fifty-five thousand, two hundred fourteen".