1554434485 has 4 divisors (see below), whose sum is σ = 1865321388. Its totient is φ = 1243547584.

The previous prime is 1554434447. The next prime is 1554434489. The reversal of 1554434485 is 5844344551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5844344551 = 23 ⋅254101937.

It can be written as a sum of positive squares in 2 ways, for example, as 772728804 + 781705681 = 27798^2 + 27959^2 .

It is a cyclic number.

It is not a de Polignac number, because 1554434485 - 2²³ = 1546045877 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 (1554434489) 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, 155443444 + ... + 155443453.

It is an arithmetic number, because the mean of its divisors is an integer number (466330347).

Almost surely, 2^1554434485 is an apocalyptic number.

It is an amenable number.

1554434485 is a deficient number, since it is larger than the sum of its proper divisors (310886903).

1554434485 is an equidigital number, since it uses as much as digits as its factorization.

1554434485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310886902.

The product of its digits is 768000, while the sum is 43.

The square root of 1554434485 is about 39426.3171625248. The cubic root of 1554434485 is about 1158.3971334641.

The spelling of 1554434485 in words is "one billion, five hundred fifty-four million, four hundred thirty-four thousand, four hundred eighty-five".