420105255 has 8 divisors (see below), whose sum is σ = 672168432. Its totient is φ = 224056128.

The previous prime is 420105253. The next prime is 420105263. The reversal of 420105255 is 552501024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420105255 - 2¹ = 420105253 is a prime.

It is a super-3 number, since 3×420105255³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420105253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14003494 + ... + 14003523.

It is an arithmetic number, because the mean of its divisors is an integer number (84021054).

Almost surely, 2^420105255 is an apocalyptic number.

420105255 is a deficient number, since it is larger than the sum of its proper divisors (252063177).

420105255 is a wasteful number, since it uses less digits than its factorization.

420105255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28007025.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 420105255 is about 20496.4693301066. The cubic root of 420105255 is about 748.9497923271.

Adding to 420105255 its reverse (552501024), we get a palindrome (972606279).

The spelling of 420105255 in words is "four hundred twenty million, one hundred five thousand, two hundred fifty-five".