421353553 has 8 divisors (see below), whose sum is σ = 428461472. Its totient is φ = 414269856.

The previous prime is 421353529. The next prime is 421353563. The reversal of 421353553 is 355353124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421353553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421353563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30901 + ... + 42397.

It is an arithmetic number, because the mean of its divisors is an integer number (53557684).

Almost surely, 2^421353553 is an apocalyptic number.

It is an amenable number.

421353553 is a deficient number, since it is larger than the sum of its proper divisors (7107919).

421353553 is a wasteful number, since it uses less digits than its factorization.

421353553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12111.

The product of its digits is 27000, while the sum is 31.

The square root of 421353553 is about 20526.8982800617. The cubic root of 421353553 is about 749.6908669702.

The spelling of 421353553 in words is "four hundred twenty-one million, three hundred fifty-three thousand, five hundred fifty-three".