1551112254533 has 4 divisors (see below), whose sum is σ = 1551149990700. Its totient is φ = 1551074518368.

The previous prime is 1551112254493. The next prime is 1551112254547. The reversal of 1551112254533 is 3354522111551.

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

It can be written as a sum of positive squares in 2 ways, for example, as 975239201764 + 575873052769 = 987542^2 + 758863^2 .

It is a cyclic number.

It is not a de Polignac number, because 1551112254533 - 2³⁶ = 1482392777797 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 (1551112259533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18806360 + ... + 18888657.

It is an arithmetic number, because the mean of its divisors is an integer number (387787497675).

Almost surely, 2^{1551112254533} is an apocalyptic number.

It is an amenable number.

1551112254533 is a deficient number, since it is larger than the sum of its proper divisors (37736167).

1551112254533 is an equidigital number, since it uses as much as digits as its factorization.

1551112254533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37736166.

The product of its digits is 90000, while the sum is 38.

The spelling of 1551112254533 in words is "one trillion, five hundred fifty-one billion, one hundred twelve million, two hundred fifty-four thousand, five hundred thirty-three".