2162515225 has 24 divisors (see below), whose sum is σ = 2907235800. Its totient is φ = 1586181120.

The previous prime is 2162515213. The next prime is 2162515237. The reversal of 2162515225 is 5225152612.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2162515213) and next prime (2162515237).

It can be written as a sum of positive squares in 12 ways, for example, as 1406925081 + 755590144 = 37509^2 + 27488^2 .

It is not a de Polignac number, because 2162515225 - 2¹³ = 2162507033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26097 + ... + 70753.

It is an arithmetic number, because the mean of its divisors is an integer number (121134825).

Almost surely, 2^2162515225 is an apocalyptic number.

2162515225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2162515225 is a deficient number, since it is larger than the sum of its proper divisors (744720575).

2162515225 is a wasteful number, since it uses less digits than its factorization.

2162515225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44829 (or 44824 counting only the distinct ones).

The product of its digits is 12000, while the sum is 31.

The square root of 2162515225 is about 46502.8517942717. The cubic root of 2162515225 is about 1293.1623682784.

Adding to 2162515225 its reverse (5225152612), we get a palindrome (7387667837).

The spelling of 2162515225 in words is "two billion, one hundred sixty-two million, five hundred fifteen thousand, two hundred twenty-five".