1875521485 has 4 divisors (see below), whose sum is σ = 2250625788. Its totient is φ = 1500417184.

The previous prime is 1875521477. The next prime is 1875521489. The reversal of 1875521485 is 5841255781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5841255781 = 191 ⋅30582491.

It can be written as a sum of positive squares in 2 ways, for example, as 505485289 + 1370036196 = 22483^2 + 37014^2 .

It is a cyclic number.

It is not a de Polignac number, because 1875521485 - 2³ = 1875521477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1875521489) 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, 187552144 + ... + 187552153.

It is an arithmetic number, because the mean of its divisors is an integer number (562656447).

Almost surely, 2^1875521485 is an apocalyptic number.

It is an amenable number.

1875521485 is a deficient number, since it is larger than the sum of its proper divisors (375104303).

1875521485 is an equidigital number, since it uses as much as digits as its factorization.

1875521485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375104302.

The product of its digits is 448000, while the sum is 46.

The square root of 1875521485 is about 43307.2913606935. The cubic root of 1875521485 is about 1233.2203459110.

The spelling of 1875521485 in words is "one billion, eight hundred seventy-five million, five hundred twenty-one thousand, four hundred eighty-five".