1553211423 has 16 divisors (see below), whose sum is σ = 2305282560. Its totient is φ = 1033571448.

The previous prime is 1553211421. The next prime is 1553211467. The reversal of 1553211423 is 3241123551.

1553211423 is a `hidden beast` number, since 15 + 532 + 114 + 2 + 3 = 666.

It is not a de Polignac number, because 1553211423 - 2¹ = 1553211421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553211421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37815 + ... + 67352.

It is an arithmetic number, because the mean of its divisors is an integer number (144080160).

Almost surely, 2^1553211423 is an apocalyptic number.

1553211423 is a deficient number, since it is larger than the sum of its proper divisors (752071137).

1553211423 is a wasteful number, since it uses less digits than its factorization.

1553211423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105723 (or 105717 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1553211423 is about 39410.8033792766. The cubic root of 1553211423 is about 1158.0932366068.

Adding to 1553211423 its reverse (3241123551), we get a palindrome (4794334974).

The spelling of 1553211423 in words is "one billion, five hundred fifty-three million, two hundred eleven thousand, four hundred twenty-three".