15204243453253 has 2 divisors, whose sum is σ = 15204243453254. Its totient is φ = 15204243453252.

The previous prime is 15204243453181. The next prime is 15204243453299. The reversal of 15204243453253 is 35235434240251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8584624582209 + 6619618871044 = 2929953^2 + 2572862^2 .

It is a cyclic number.

It is not a de Polignac number, because 15204243453253 - 2²⁹ = 15203706582341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15204243453653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7602121726626 + 7602121726627.

It is an arithmetic number, because the mean of its divisors is an integer number (7602121726627).

Almost surely, 2^{15204243453253} is an apocalyptic number.

It is an amenable number.

15204243453253 is a deficient number, since it is larger than the sum of its proper divisors (1).

15204243453253 is an equidigital number, since it uses as much as digits as its factorization.

15204243453253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728000, while the sum is 43.

The spelling of 15204243453253 in words is "fifteen trillion, two hundred four billion, two hundred forty-three million, four hundred fifty-three thousand, two hundred fifty-three".