421650501 has 8 divisors (see below), whose sum is σ = 563471520. Its totient is φ = 280464912.

The previous prime is 421650487. The next prime is 421650503. The reversal of 421650501 is 105056124.

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

It is not a de Polignac number, because 421650501 - 2¹⁰ = 421649477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421650503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157306 + ... + 159963.

It is an arithmetic number, because the mean of its divisors is an integer number (70433940).

Almost surely, 2^421650501 is an apocalyptic number.

It is an amenable number.

421650501 is a deficient number, since it is larger than the sum of its proper divisors (141821019).

421650501 is a wasteful number, since it uses less digits than its factorization.

421650501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317715.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 421650501 is about 20534.1301495827. The cubic root of 421650501 is about 749.8669399503.

The spelling of 421650501 in words is "four hundred twenty-one million, six hundred fifty thousand, five hundred one".