2125135533 has 4 divisors (see below), whose sum is σ = 2833514048. Its totient is φ = 1416757020.

The previous prime is 2125135513. The next prime is 2125135543. The reversal of 2125135533 is 3355315212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2125135533 - 2²⁰ = 2124086957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2125135533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125135513) 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, 354189253 + ... + 354189258.

It is an arithmetic number, because the mean of its divisors is an integer number (708378512).

Almost surely, 2^2125135533 is an apocalyptic number.

It is an amenable number.

2125135533 is a deficient number, since it is larger than the sum of its proper divisors (708378515).

2125135533 is an equidigital number, since it uses as much as digits as its factorization.

2125135533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708378514.

The product of its digits is 13500, while the sum is 30.

The square root of 2125135533 is about 46099.1923248119. The cubic root of 2125135533 is about 1285.6681275722.

The spelling of 2125135533 in words is "two billion, one hundred twenty-five million, one hundred thirty-five thousand, five hundred thirty-three".