501307057 has 4 divisors (see below), whose sum is σ = 523103040. Its totient is φ = 479511076.

The previous prime is 501306997. The next prime is 501307097. The reversal of 501307057 is 750703105.

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 not a de Polignac number, because 501307057 - 2⁷ = 501306929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501307097) 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, 10897957 + ... + 10898002.

It is an arithmetic number, because the mean of its divisors is an integer number (130775760).

Almost surely, 2^501307057 is an apocalyptic number.

It is an amenable number.

501307057 is a deficient number, since it is larger than the sum of its proper divisors (21795983).

501307057 is a wasteful number, since it uses less digits than its factorization.

501307057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21795982.

The product of its (nonzero) digits is 3675, while the sum is 28.

The square root of 501307057 is about 22389.8873824769. The cubic root of 501307057 is about 794.3915320961.

The spelling of 501307057 in words is "five hundred one million, three hundred seven thousand, fifty-seven".