25334521 has 2 divisors, whose sum is σ = 25334522. Its totient is φ = 25334520.

The previous prime is 25334503. The next prime is 25334549. The reversal of 25334521 is 12543352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23474025 + 1860496 = 4845^2 + 1364^2 .

It is a cyclic number.

It is not a de Polignac number, because 25334521 - 2¹¹ = 25332473 is a prime.

It is not a weakly prime, because it can be changed into another prime (25334501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12667260 + 12667261.

It is an arithmetic number, because the mean of its divisors is an integer number (12667261).

Almost surely, 2^25334521 is an apocalyptic number.

It is an amenable number.

25334521 is a deficient number, since it is larger than the sum of its proper divisors (1).

25334521 is an equidigital number, since it uses as much as digits as its factorization.

25334521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 25.

The square root of 25334521 is about 5033.3409381841. The cubic root of 25334521 is about 293.7001933965.

Adding to 25334521 its reverse (12543352), we get a palindrome (37877873).

The spelling of 25334521 in words is "twenty-five million, three hundred thirty-four thousand, five hundred twenty-one".