501413331 has 4 divisors (see below), whose sum is σ = 668551112. Its totient is φ = 334275552.

The previous prime is 501413323. The next prime is 501413347. The reversal of 501413331 is 133314105.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 501413331 - 2³ = 501413323 is a prime.

It is a super-2 number, since 2×501413331² = 502830657009031122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 501413298 and 501413307.

It is not an unprimeable number, because it can be changed into a prime (501413321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83568886 + ... + 83568891.

It is an arithmetic number, because the mean of its divisors is an integer number (167137778).

Almost surely, 2^501413331 is an apocalyptic number.

501413331 is a deficient number, since it is larger than the sum of its proper divisors (167137781).

501413331 is a wasteful number, since it uses less digits than its factorization.

501413331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167137780.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 501413331 is about 22392.2605156335. The cubic root of 501413331 is about 794.4476634960.

Adding to 501413331 its reverse (133314105), we get a palindrome (634727436).

The spelling of 501413331 in words is "five hundred one million, four hundred thirteen thousand, three hundred thirty-one".