1550113823 has 4 divisors (see below), whose sum is σ = 1550196648. Its totient is φ = 1550031000.

The previous prime is 1550113811. The next prime is 1550113871. The reversal of 1550113823 is 3283110551.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1550113823 - 2⁶ = 1550113759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550113723) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1448 + ... + 55698.

It is an arithmetic number, because the mean of its divisors is an integer number (387549162).

Almost surely, 2^1550113823 is an apocalyptic number.

1550113823 is a deficient number, since it is larger than the sum of its proper divisors (82825).

1550113823 is an equidigital number, since it uses as much as digits as its factorization.

1550113823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82824.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 1550113823 is about 39371.4848970673. The cubic root of 1550113823 is about 1157.3228548996.

The spelling of 1550113823 in words is "one billion, five hundred fifty million, one hundred thirteen thousand, eight hundred twenty-three".