500011252421 has 8 divisors (see below), whose sum is σ = 543732427800. Its totient is φ = 457879938048.

The previous prime is 500011252381. The next prime is 500011252439. The reversal of 500011252421 is 124252110005.

It can be written as a sum of positive squares in 4 ways, for example, as 354918062500 + 145093189921 = 595750^2 + 380911^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 500011252421 - 2¹⁸ = 500010990277 is a prime.

It is a super-2 number, since 2×500011252421² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500011255421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397464596 + ... + 397465853.

It is an arithmetic number, because the mean of its divisors is an integer number (67966553475).

Almost surely, 2^500011252421 is an apocalyptic number.

It is an amenable number.

500011252421 is a deficient number, since it is larger than the sum of its proper divisors (43721175379).

500011252421 is a wasteful number, since it uses less digits than its factorization.

500011252421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794930503.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 500011252421 its reverse (124252110005), we get a palindrome (624263362426).

The spelling of 500011252421 in words is "five hundred billion, eleven million, two hundred fifty-two thousand, four hundred twenty-one".