2162519825 has 6 divisors (see below), whose sum is σ = 2681524614. Its totient is φ = 1730015840.

The previous prime is 2162519809. The next prime is 2162519831. The reversal of 2162519825 is 5289152612.

It can be written as a sum of positive squares in 3 ways, for example, as 1478656 + 2161041169 = 1216^2 + 46487^2 .

It is not a de Polignac number, because 2162519825 - 2⁴ = 2162519809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43250372 + ... + 43250421.

It is an arithmetic number, because the mean of its divisors is an integer number (446920769).

Almost surely, 2^2162519825 is an apocalyptic number.

2162519825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2162519825 is a deficient number, since it is larger than the sum of its proper divisors (519004789).

2162519825 is an equidigital number, since it uses as much as digits as its factorization.

2162519825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86500803 (or 86500798 counting only the distinct ones).

The product of its digits is 86400, while the sum is 41.

The square root of 2162519825 is about 46502.9012535777. The cubic root of 2162519825 is about 1293.1632851957.

The spelling of 2162519825 in words is "two billion, one hundred sixty-two million, five hundred nineteen thousand, eight hundred twenty-five".