1553000113551 has 4 divisors (see below), whose sum is σ = 2070666818072. Its totient is φ = 1035333409032.

The previous prime is 1553000113549. The next prime is 1553000113579. The reversal of 1553000113551 is 1553110003551.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1553000113551 - 2¹ = 1553000113549 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 (1553000113351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258833352256 + ... + 258833352261.

It is an arithmetic number, because the mean of its divisors is an integer number (517666704518).

Almost surely, 2^{1553000113551} is an apocalyptic number.

1553000113551 is a deficient number, since it is larger than the sum of its proper divisors (517666704521).

1553000113551 is an equidigital number, since it uses as much as digits as its factorization.

1553000113551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517666704520.

The product of its (nonzero) digits is 5625, while the sum is 30.

The spelling of 1553000113551 in words is "one trillion, five hundred fifty-three billion, one hundred thirteen thousand, five hundred fifty-one".