501106601 has 4 divisors (see below), whose sum is σ = 508585872. Its totient is φ = 493627332.

The previous prime is 501106561. The next prime is 501106609. The reversal of 501106601 is 106601105.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501106601 is a prime.

It is a super-2 number, since 2×501106601² = 502215651131546402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501106609) 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, 3739535 + ... + 3739668.

It is an arithmetic number, because the mean of its divisors is an integer number (127146468).

Almost surely, 2^501106601 is an apocalyptic number.

It is an amenable number.

501106601 is a deficient number, since it is larger than the sum of its proper divisors (7479271).

501106601 is an equidigital number, since it uses as much as digits as its factorization.

501106601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7479270.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 501106601 is about 22385.4104496656. The cubic root of 501106601 is about 794.2856344056.

Adding to 501106601 its reverse (106601105), we get a palindrome (607707706).

The spelling of 501106601 in words is "five hundred one million, one hundred six thousand, six hundred one".