1553135875 has 8 divisors (see below), whose sum is σ = 1938313728. Its totient is φ = 1242508600.

The previous prime is 1553135839. The next prime is 1553135879. The reversal of 1553135875 is 5785313551.

It is not a de Polignac number, because 1553135875 - 2²⁵ = 1519581443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1553135879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6212419 + ... + 6212668.

It is an arithmetic number, because the mean of its divisors is an integer number (242289216).

Almost surely, 2^1553135875 is an apocalyptic number.

1553135875 is a deficient number, since it is larger than the sum of its proper divisors (385177853).

1553135875 is an equidigital number, since it uses as much as digits as its factorization.

1553135875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12425102 (or 12425092 counting only the distinct ones).

The product of its digits is 315000, while the sum is 43.

The square root of 1553135875 is about 39409.8448994664. The cubic root of 1553135875 is about 1158.0744598013.

The spelling of 1553135875 in words is "one billion, five hundred fifty-three million, one hundred thirty-five thousand, eight hundred seventy-five".