2142245025 has 36 divisors (see below), whose sum is σ = 3865061772. Its totient is φ = 1134174720.

The previous prime is 2142245011. The next prime is 2142245029. The reversal of 2142245025 is 5205422412.

It can be written as a sum of positive squares in 6 ways, for example, as 142277184 + 1999967841 = 11928^2 + 44721^2 .

It is not a de Polignac number, because 2142245025 - 2⁶ = 2142244961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2142245025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142245029) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3924 + ... + 65573.

It is an arithmetic number, because the mean of its divisors is an integer number (107362827).

Almost surely, 2^2142245025 is an apocalyptic number.

2142245025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2142245025 is a deficient number, since it is larger than the sum of its proper divisors (1722816747).

2142245025 is a wasteful number, since it uses less digits than its factorization.

2142245025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69650 (or 69642 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 2142245025 is about 46284.3928878839. The cubic root of 2142245025 is about 1289.1092191773.

Adding to 2142245025 its reverse (5205422412), we get a palindrome (7347667437).

The spelling of 2142245025 in words is "two billion, one hundred forty-two million, two hundred forty-five thousand, twenty-five".