421333055 has 24 divisors (see below), whose sum is σ = 597268080. Its totient is φ = 282846720.

The previous prime is 421333019. The next prime is 421333061. The reversal of 421333055 is 550333124.

It is not a de Polignac number, because 421333055 - 2⁸ = 421332799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13370 + ... + 31959.

It is an arithmetic number, because the mean of its divisors is an integer number (24886170).

Almost surely, 2^421333055 is an apocalyptic number.

421333055 is a deficient number, since it is larger than the sum of its proper divisors (175935025).

421333055 is a wasteful number, since it uses less digits than its factorization.

421333055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45371 (or 45358 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 421333055 is about 20526.3989779016. The cubic root of 421333055 is about 749.6787097905.

Adding to 421333055 its reverse (550333124), we get a palindrome (971666179).

The spelling of 421333055 in words is "four hundred twenty-one million, three hundred thirty-three thousand, fifty-five".