1550343445 has 16 divisors (see below), whose sum is σ = 2129015808. Its totient is φ = 1061677440.

The previous prime is 1550343419. The next prime is 1550343481. The reversal of 1550343445 is 5443430551.

It is not a de Polignac number, because 1550343445 - 2⁷ = 1550343317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1550343445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2469 + ... + 55738.

It is an arithmetic number, because the mean of its divisors is an integer number (133063488).

Almost surely, 2^1550343445 is an apocalyptic number.

It is an amenable number.

1550343445 is a deficient number, since it is larger than the sum of its proper divisors (578672363).

1550343445 is an equidigital number, since it uses as much as digits as its factorization.

1550343445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58980.

The product of its (nonzero) digits is 72000, while the sum is 34.

The square root of 1550343445 is about 39374.4008843309. The cubic root of 1550343445 is about 1157.3799977287.

Adding to 1550343445 its reverse (5443430551), we get a palindrome (6993773996).

The spelling of 1550343445 in words is "one billion, five hundred fifty million, three hundred forty-three thousand, four hundred forty-five".