501045005 has 4 divisors (see below), whose sum is σ = 601254012. Its totient is φ = 400836000.

The previous prime is 501044993. The next prime is 501045007. The reversal of 501045005 is 500540105.

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

It can be written as a sum of positive squares in 2 ways, for example, as 104796169 + 396248836 = 10237^2 + 19906^2 .

It is not a de Polignac number, because 501045005 - 2⁸ = 501044749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501045007) 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, 50104496 + ... + 50104505.

It is an arithmetic number, because the mean of its divisors is an integer number (150313503).

Almost surely, 2^501045005 is an apocalyptic number.

It is an amenable number.

501045005 is a deficient number, since it is larger than the sum of its proper divisors (100209007).

501045005 is a wasteful number, since it uses less digits than its factorization.

501045005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100209006.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 501045005 is about 22384.0346005808. The cubic root of 501045005 is about 794.2530885544.

The spelling of 501045005 in words is "five hundred one million, forty-five thousand, five".