1550323413 has 24 divisors (see below), whose sum is σ = 2272233600. Its totient is φ = 1018427904.

The previous prime is 1550323409. The next prime is 1550323433. The reversal of 1550323413 is 3143230551.

It is not a de Polignac number, because 1550323413 - 2² = 1550323409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550323433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 408358 + ... + 412136.

It is an arithmetic number, because the mean of its divisors is an integer number (94676400).

Almost surely, 2^1550323413 is an apocalyptic number.

It is an amenable number.

1550323413 is a deficient number, since it is larger than the sum of its proper divisors (721910187).

1550323413 is a wasteful number, since it uses less digits than its factorization.

1550323413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4441 (or 4438 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 1550323413 is about 39374.1465050355. The cubic root of 1550323413 is about 1157.3750128685.

Adding to 1550323413 its reverse (3143230551), we get a palindrome (4693553964).

The spelling of 1550323413 in words is "one billion, five hundred fifty million, three hundred twenty-three thousand, four hundred thirteen".