1982525271 has 4 divisors (see below), whose sum is σ = 2643367032. Its totient is φ = 1321683512.

The previous prime is 1982525269. The next prime is 1982525323. The reversal of 1982525271 is 1725252891.

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

It is a cyclic number.

It is not a de Polignac number, because 1982525271 - 2¹ = 1982525269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982525201) 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, 330420876 + ... + 330420881.

It is an arithmetic number, because the mean of its divisors is an integer number (660841758).

Almost surely, 2^1982525271 is an apocalyptic number.

1982525271 is a deficient number, since it is larger than the sum of its proper divisors (660841761).

1982525271 is an equidigital number, since it uses as much as digits as its factorization.

1982525271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660841760.

The product of its digits is 100800, while the sum is 42.

The square root of 1982525271 is about 44525.5575035282. The cubic root of 1982525271 is about 1256.2408474173.

The spelling of 1982525271 in words is "one billion, nine hundred eighty-two million, five hundred twenty-five thousand, two hundred seventy-one".