15252421145453 has 2 divisors, whose sum is σ = 15252421145454. Its totient is φ = 15252421145452.

The previous prime is 15252421145413. The next prime is 15252421145459. The reversal of 15252421145453 is 35454112425251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15198598537444 + 53822608009 = 3898538^2 + 231997^2 .

It is a cyclic number.

It is not a de Polignac number, because 15252421145453 - 2³² = 15248126178157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15252421145459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7626210572726 + 7626210572727.

It is an arithmetic number, because the mean of its divisors is an integer number (7626210572727).

Almost surely, 2^{15252421145453} is an apocalyptic number.

It is an amenable number.

15252421145453 is a deficient number, since it is larger than the sum of its proper divisors (1).

15252421145453 is an equidigital number, since it uses as much as digits as its factorization.

15252421145453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960000, while the sum is 44.

The spelling of 15252421145453 in words is "fifteen trillion, two hundred fifty-two billion, four hundred twenty-one million, one hundred forty-five thousand, four hundred fifty-three".