421250501 has 24 divisors (see below), whose sum is σ = 524628000. Its totient is φ = 336226464.

The previous prime is 421250471. The next prime is 421250521. The reversal of 421250501 is 105052124.

It is a de Polignac number, because none of the positive numbers 2^k-421250501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421250521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51095 + ... + 58763.

It is an arithmetic number, because the mean of its divisors is an integer number (21859500).

Almost surely, 2^421250501 is an apocalyptic number.

It is an amenable number.

421250501 is a deficient number, since it is larger than the sum of its proper divisors (103377499).

421250501 is a wasteful number, since it uses less digits than its factorization.

421250501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7761 (or 7754 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 421250501 is about 20524.3879567699. The cubic root of 421250501 is about 749.6297437624.

The spelling of 421250501 in words is "four hundred twenty-one million, two hundred fifty thousand, five hundred one".