2142525257 has 2 divisors, whose sum is σ = 2142525258. Its totient is φ = 2142525256.

The previous prime is 2142525251. The next prime is 2142525269. The reversal of 2142525257 is 7525252412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1613709241 + 528816016 = 40171^2 + 22996^2 .

It is a cyclic number.

It is not a de Polignac number, because 2142525257 - 2⁴ = 2142525241 is a prime.

It is not a weakly prime, because it can be changed into another prime (2142525251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071262628 + 1071262629.

It is an arithmetic number, because the mean of its divisors is an integer number (1071262629).

Almost surely, 2^2142525257 is an apocalyptic number.

It is an amenable number.

2142525257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142525257 is an equidigital number, since it uses as much as digits as its factorization.

2142525257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56000, while the sum is 35.

The square root of 2142525257 is about 46287.4200728448. The cubic root of 2142525257 is about 1289.1654271740.

Adding to 2142525257 its reverse (7525252412), we get a palindrome (9667777669).

The spelling of 2142525257 in words is "two billion, one hundred forty-two million, five hundred twenty-five thousand, two hundred fifty-seven".