2525342021 has 2 divisors, whose sum is σ = 2525342022. Its totient is φ = 2525342020.

The previous prime is 2525342009. The next prime is 2525342033. The reversal of 2525342021 is 1202435252.

It is a balanced prime because it is at equal distance from previous prime (2525342009) and next prime (2525342033).

It can be written as a sum of positive squares in only one way, i.e., 1729312225 + 796029796 = 41585^2 + 28214^2 .

It is a cyclic number.

It is not a de Polignac number, because 2525342021 - 2¹⁰ = 2525340997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2525342221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262671010 + 1262671011.

It is an arithmetic number, because the mean of its divisors is an integer number (1262671011).

Almost surely, 2^2525342021 is an apocalyptic number.

It is an amenable number.

2525342021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2525342021 is an equidigital number, since it uses as much as digits as its factorization.

2525342021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2525342021 is about 50252.7812265152. The cubic root of 2525342021 is about 1361.7793213218.

Adding to 2525342021 its reverse (1202435252), we get a palindrome (3727777273).

The spelling of 2525342021 in words is "two billion, five hundred twenty-five million, three hundred forty-two thousand, twenty-one".