421405053 has 8 divisors (see below), whose sum is σ = 562020000. Its totient is φ = 280863408.

The previous prime is 421405051. The next prime is 421405063. The reversal of 421405053 is 350504124.

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

It is not a de Polignac number, because 421405053 - 2¹ = 421405051 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421405051) 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, 3103 + ... + 29196.

It is an arithmetic number, because the mean of its divisors is an integer number (70252500).

Almost surely, 2^421405053 is an apocalyptic number.

It is an amenable number.

421405053 is a deficient number, since it is larger than the sum of its proper divisors (140614947).

421405053 is a wasteful number, since it uses less digits than its factorization.

421405053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36651.

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

The square root of 421405053 is about 20528.1526933136. The cubic root of 421405053 is about 749.7214094181.

Adding to 421405053 its reverse (350504124), we get a palindrome (771909177).

The spelling of 421405053 in words is "four hundred twenty-one million, four hundred five thousand, fifty-three".