1553543422 has 4 divisors (see below), whose sum is σ = 2330315136. Its totient is φ = 776771710.

The previous prime is 1553543399. The next prime is 1553543443. The reversal of 1553543422 is 2243453551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2243453551 = 181 ⋅12394771.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 388385854 + ... + 388385857.

It is an arithmetic number, because the mean of its divisors is an integer number (582578784).

Almost surely, 2^1553543422 is an apocalyptic number.

1553543422 is a deficient number, since it is larger than the sum of its proper divisors (776771714).

1553543422 is an equidigital number, since it uses as much as digits as its factorization.

1553543422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776771713.

The product of its digits is 72000, while the sum is 34.

The square root of 1553543422 is about 39415.0151845715. The cubic root of 1553543422 is about 1158.1757448859.

Adding to 1553543422 its reverse (2243453551), we get a palindrome (3796996973).

The spelling of 1553543422 in words is "one billion, five hundred fifty-three million, five hundred forty-three thousand, four hundred twenty-two".