25212541 has 2 divisors, whose sum is σ = 25212542. Its totient is φ = 25212540.

The previous prime is 25212527. The next prime is 25212553. The reversal of 25212541 is 14521252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23561316 + 1651225 = 4854^2 + 1285^2 .

It is a cyclic number.

It is not a de Polignac number, because 25212541 - 2⁷ = 25212413 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25212511) 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, 12606270 + 12606271.

It is an arithmetic number, because the mean of its divisors is an integer number (12606271).

Almost surely, 2^25212541 is an apocalyptic number.

It is an amenable number.

25212541 is a deficient number, since it is larger than the sum of its proper divisors (1).

25212541 is an equidigital number, since it uses as much as digits as its factorization.

25212541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 800, while the sum is 22.

The square root of 25212541 is about 5021.2091173342. The cubic root of 25212541 is about 293.2280681463.

Adding to 25212541 its reverse (14521252), we get a palindrome (39733793).

The spelling of 25212541 in words is "twenty-five million, two hundred twelve thousand, five hundred forty-one".