1553105424 has 80 divisors (see below), whose sum is σ = 4346096832. Its totient is φ = 475083264.

The previous prime is 1553105413. The next prime is 1553105443. The reversal of 1553105424 is 4245013551.

It is a junction number, because it is equal to n+sod(n) for n = 1553105391 and 1553105400.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100759 + ... + 115145.

Almost surely, 2^1553105424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1553105424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2173048416).

1553105424 is an abundant number, since it is smaller than the sum of its proper divisors (2792991408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1553105424 is a wasteful number, since it uses less digits than its factorization.

1553105424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14584 (or 14578 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1553105424 is about 39409.4585600970. The cubic root of 1553105424 is about 1158.0668912950.

Adding to 1553105424 its reverse (4245013551), we get a palindrome (5798118975).

The spelling of 1553105424 in words is "one billion, five hundred fifty-three million, one hundred five thousand, four hundred twenty-four".