506222401 has 4 divisors (see below), whose sum is σ = 506350000. Its totient is φ = 506094804.

The previous prime is 506222357. The next prime is 506222407. The reversal of 506222401 is 104222605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104222605 = 5 ⋅20844521.

It is a cyclic number.

It is not a de Polignac number, because 506222401 - 2⁹ = 506221889 is a prime.

It is a super-2 number, since 2×506222401² = 512522238548409602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506222407) 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, 57651 + ... + 65848.

It is an arithmetic number, because the mean of its divisors is an integer number (126587500).

Almost surely, 2^506222401 is an apocalyptic number.

It is an amenable number.

506222401 is a deficient number, since it is larger than the sum of its proper divisors (127599).

506222401 is a wasteful number, since it uses less digits than its factorization.

506222401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127598.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 506222401 is about 22499.3866805298. The cubic root of 506222401 is about 796.9794435058.

The spelling of 506222401 in words is "five hundred six million, two hundred twenty-two thousand, four hundred one".