25052437 has 2 divisors, whose sum is σ = 25052438. Its totient is φ = 25052436.

The previous prime is 25052399. The next prime is 25052449. The reversal of 25052437 is 73425052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25010001 + 42436 = 5001^2 + 206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25052437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25052537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12526218 + 12526219.

It is an arithmetic number, because the mean of its divisors is an integer number (12526219).

Almost surely, 2^25052437 is an apocalyptic number.

It is an amenable number.

25052437 is a deficient number, since it is larger than the sum of its proper divisors (1).

25052437 is an equidigital number, since it uses as much as digits as its factorization.

25052437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 25052437 is about 5005.2409532409. The cubic root of 25052437 is about 292.6060666786.

Adding to 25052437 its reverse (73425052), we get a palindrome (98477489).

The spelling of 25052437 in words is "twenty-five million, fifty-two thousand, four hundred thirty-seven".