405420615535253 has 2 divisors, whose sum is σ = 405420615535254. Its totient is φ = 405420615535252.

The previous prime is 405420615535231. The next prime is 405420615535283. The reversal of 405420615535253 is 352535516024504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378965568493444 + 26455047041809 = 19467038^2 + 5143447^2 .

It is a cyclic number.

It is not a de Polignac number, because 405420615535253 - 2⁸ = 405420615534997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405420615535223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202710307767626 + 202710307767627.

It is an arithmetic number, because the mean of its divisors is an integer number (202710307767627).

Almost surely, 2^{405420615535253} is an apocalyptic number.

It is an amenable number.

405420615535253 is a deficient number, since it is larger than the sum of its proper divisors (1).

405420615535253 is an equidigital number, since it uses as much as digits as its factorization.

405420615535253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800000, while the sum is 50.

The spelling of 405420615535253 in words is "four hundred five trillion, four hundred twenty billion, six hundred fifteen million, five hundred thirty-five thousand, two hundred fifty-three".