421112455 has 4 divisors (see below), whose sum is σ = 505334952. Its totient is φ = 336889960.

The previous prime is 421112449. The next prime is 421112477. The reversal of 421112455 is 554211124.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 421112455 - 2⁷ = 421112327 is a prime.

It is a super-2 number, since 2×421112455² = 354671399512254050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42111241 + ... + 42111250.

It is an arithmetic number, because the mean of its divisors is an integer number (126333738).

Almost surely, 2^421112455 is an apocalyptic number.

421112455 is a deficient number, since it is larger than the sum of its proper divisors (84222497).

421112455 is an equidigital number, since it uses as much as digits as its factorization.

421112455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84222496.

The product of its digits is 1600, while the sum is 25.

The square root of 421112455 is about 20521.0247063835. The cubic root of 421112455 is about 749.5478489488.

Adding to 421112455 its reverse (554211124), we get a palindrome (975323579).

The spelling of 421112455 in words is "four hundred twenty-one million, one hundred twelve thousand, four hundred fifty-five".