25212534412453 has 2 divisors, whose sum is σ = 25212534412454. Its totient is φ = 25212534412452.

The previous prime is 25212534412357. The next prime is 25212534412493. The reversal of 25212534412453 is 35421443521252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14366169414529 + 10846364997924 = 3790273^2 + 3293382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25212534412453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25212534412493) 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, 12606267206226 + 12606267206227.

It is an arithmetic number, because the mean of its divisors is an integer number (12606267206227).

Almost surely, 2^{25212534412453} is an apocalyptic number.

It is an amenable number.

25212534412453 is a deficient number, since it is larger than the sum of its proper divisors (1).

25212534412453 is an equidigital number, since it uses as much as digits as its factorization.

25212534412453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152000, while the sum is 43.

The spelling of 25212534412453 in words is "twenty-five trillion, two hundred twelve billion, five hundred thirty-four million, four hundred twelve thousand, four hundred fifty-three".