1553044413 has 8 divisors (see below), whose sum is σ = 2099092288. Its totient is φ = 1021179744.

The previous prime is 1553044391. The next prime is 1553044421. The reversal of 1553044413 is 3144403551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1553044413 - 2⁹ = 1553043901 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 (1553044463) 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 7 ways as a sum of consecutive naturals, for example, 3545545 + ... + 3545982.

It is an arithmetic number, because the mean of its divisors is an integer number (262386536).

Almost surely, 2^1553044413 is an apocalyptic number.

It is an amenable number.

1553044413 is a deficient number, since it is larger than the sum of its proper divisors (546047875).

1553044413 is an equidigital number, since it uses as much as digits as its factorization.

1553044413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7091603.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1553044413 is about 39408.6844870518. The cubic root of 1553044413 is about 1158.0517268931.

Adding to 1553044413 its reverse (3144403551), we get a palindrome (4697447964).

The spelling of 1553044413 in words is "one billion, five hundred fifty-three million, forty-four thousand, four hundred thirteen".