420525255253 has 2 divisors, whose sum is σ = 420525255254. Its totient is φ = 420525255252.

The previous prime is 420525255233. The next prime is 420525255277. The reversal of 420525255253 is 352552525024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 410806647364 + 9718607889 = 640942^2 + 98583^2 .

It is a cyclic number.

It is not a de Polignac number, because 420525255253 - 2¹⁷ = 420525124181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420525255233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210262627626 + 210262627627.

It is an arithmetic number, because the mean of its divisors is an integer number (210262627627).

Almost surely, 2^420525255253 is an apocalyptic number.

It is an amenable number.

420525255253 is a deficient number, since it is larger than the sum of its proper divisors (1).

420525255253 is an equidigital number, since it uses as much as digits as its factorization.

420525255253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600000, while the sum is 40.

The spelling of 420525255253 in words is "four hundred twenty billion, five hundred twenty-five million, two hundred fifty-five thousand, two hundred fifty-three".