1159125553 has 4 divisors (see below), whose sum is σ = 1159441780. Its totient is φ = 1158809328.

The previous prime is 1159125547. The next prime is 1159125559. The reversal of 1159125553 is 3555219511.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1159125547) and next prime (1159125559).

It can be written as a sum of positive squares in 2 ways, for example, as 867125809 + 291999744 = 29447^2 + 17088^2 .

It is a cyclic number.

It is not a de Polignac number, because 1159125553 - 2¹⁷ = 1158994481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1159125559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152550 + ... + 159967.

It is an arithmetic number, because the mean of its divisors is an integer number (289860445).

Almost surely, 2^1159125553 is an apocalyptic number.

It is an amenable number.

1159125553 is a deficient number, since it is larger than the sum of its proper divisors (316227).

1159125553 is an equidigital number, since it uses as much as digits as its factorization.

1159125553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316226.

The product of its digits is 33750, while the sum is 37.

The square root of 1159125553 is about 34045.9329876565. The cubic root of 1159125553 is about 1050.4534860500.

The spelling of 1159125553 in words is "one billion, one hundred fifty-nine million, one hundred twenty-five thousand, five hundred fifty-three".