1550413312 has 120 divisors (see below), whose sum is σ = 3729571560. Its totient is φ = 641249280.

The previous prime is 1550413303. The next prime is 1550413313. The reversal of 1550413312 is 2133140551.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550413313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 726487 + ... + 728617.

It is an arithmetic number, because the mean of its divisors is an integer number (31079763).

Almost surely, 2^1550413312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1550413312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1864785780).

1550413312 is an abundant number, since it is smaller than the sum of its proper divisors (2179158248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1550413312 is an equidigital number, since it uses as much as digits as its factorization.

1550413312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192 (or 2169 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1550413312 is about 39375.2880878350. The cubic root of 1550413312 is about 1157.3973834364.

Adding to 1550413312 its reverse (2133140551), we get a palindrome (3683553863).

The spelling of 1550413312 in words is "one billion, five hundred fifty million, four hundred thirteen thousand, three hundred twelve".