1553335855 has 16 divisors (see below), whose sum is σ = 1883911104. Its totient is φ = 1229437440.

The previous prime is 1553335811. The next prime is 1553335859. The reversal of 1553335855 is 5585333551.

It is not a de Polignac number, because 1553335855 - 2⁷ = 1553335727 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 (1553335859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 354337 + ... + 358693.

It is an arithmetic number, because the mean of its divisors is an integer number (117744444).

Almost surely, 2^1553335855 is an apocalyptic number.

1553335855 is a deficient number, since it is larger than the sum of its proper divisors (330575249).

1553335855 is a wasteful number, since it uses less digits than its factorization.

1553335855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5106.

The product of its digits is 675000, while the sum is 43.

The square root of 1553335855 is about 39412.3820010920. The cubic root of 1553335855 is about 1158.1241617827.

The spelling of 1553335855 in words is "one billion, five hundred fifty-three million, three hundred thirty-five thousand, eight hundred fifty-five".