421055351 has 4 divisors (see below), whose sum is σ = 425786400. Its totient is φ = 416324304.

The previous prime is 421055339. The next prime is 421055359. The reversal of 421055351 is 153550124.

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

It is a cyclic number.

It is not a de Polignac number, because 421055351 - 2⁶ = 421055287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 421055351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421055359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2365391 + ... + 2365568.

It is an arithmetic number, because the mean of its divisors is an integer number (106446600).

Almost surely, 2^421055351 is an apocalyptic number.

421055351 is a deficient number, since it is larger than the sum of its proper divisors (4731049).

421055351 is an equidigital number, since it uses as much as digits as its factorization.

421055351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4731048.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 421055351 is about 20519.6333056904. The cubic root of 421055351 is about 749.5139671716.

The spelling of 421055351 in words is "four hundred twenty-one million, fifty-five thousand, three hundred fifty-one".