420255161252 has 12 divisors (see below), whose sum is σ = 735480617676. Its totient is φ = 210117841920.

The previous prime is 420255161251. The next prime is 420255161267. The reversal of 420255161252 is 252161552024.

It can be written as a sum of positive squares in 2 ways, for example, as 325258058596 + 94997102656 = 570314^2 + 308216^2 .

It is a super-3 number, since 3×420255161252³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (420255161251) 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 in 3 ways as a sum of consecutive naturals, for example, 2337149 + ... + 2510532.

It is an arithmetic number, because the mean of its divisors is an integer number (61290051473).

Almost surely, 2^420255161252 is an apocalyptic number.

It is an amenable number.

420255161252 is a deficient number, since it is larger than the sum of its proper divisors (315225456424).

420255161252 is a wasteful number, since it uses less digits than its factorization.

420255161252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4869358 (or 4869356 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 420255161252 in words is "four hundred twenty billion, two hundred fifty-five million, one hundred sixty-one thousand, two hundred fifty-two".