1553235242 has 16 divisors (see below), whose sum is σ = 2520135072. Its totient is φ = 713717040.

The previous prime is 1553235227. The next prime is 1553235259. The reversal of 1553235242 is 2425323551.

It is a junction number, because it is equal to n+sod(n) for n = 1553235199 and 1553235208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125684 + ... + 137487.

It is an arithmetic number, because the mean of its divisors is an integer number (157508442).

Almost surely, 2^1553235242 is an apocalyptic number.

1553235242 is a deficient number, since it is larger than the sum of its proper divisors (966899830).

1553235242 is a wasteful number, since it uses less digits than its factorization.

1553235242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263413.

The product of its digits is 36000, while the sum is 32.

The square root of 1553235242 is about 39411.1055668323. The cubic root of 1553235242 is about 1158.0991564881.

Adding to 1553235242 its reverse (2425323551), we get a palindrome (3978558793).

The spelling of 1553235242 in words is "one billion, five hundred fifty-three million, two hundred thirty-five thousand, two hundred forty-two".