421322055 has 128 divisors (see below), whose sum is σ = 900218880. Its totient is φ = 162984960.

The previous prime is 421322047. The next prime is 421322081. The reversal of 421322055 is 550223124.

It is not a de Polignac number, because 421322055 - 2³ = 421322047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1601854 + ... + 1602116.

It is an arithmetic number, because the mean of its divisors is an integer number (7032960).

Almost surely, 2^421322055 is an apocalyptic number.

421322055 is an abundant number, since it is smaller than the sum of its proper divisors (478896825).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421322055 is a wasteful number, since it uses less digits than its factorization.

421322055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 421322055 is about 20526.1310285207. The cubic root of 421322055 is about 749.6721856267.

Adding to 421322055 its reverse (550223124), we get a palindrome (971545179).

The spelling of 421322055 in words is "four hundred twenty-one million, three hundred twenty-two thousand, fifty-five".