501573947 has 12 divisors (see below), whose sum is σ = 583892496. Its totient is φ = 429604560.

The previous prime is 501573907. The next prime is 501573959. The reversal of 501573947 is 749375105.

It is not a de Polignac number, because 501573947 - 2¹⁰ = 501572923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501573907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84497 + ... + 90237.

It is an arithmetic number, because the mean of its divisors is an integer number (48657708).

Almost surely, 2^501573947 is an apocalyptic number.

501573947 is a deficient number, since it is larger than the sum of its proper divisors (82318549).

501573947 is a wasteful number, since it uses less digits than its factorization.

501573947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7538 (or 7531 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 501573947 is about 22395.8466461976. The cubic root of 501573947 is about 794.5324819985.

The spelling of 501573947 in words is "five hundred one million, five hundred seventy-three thousand, nine hundred forty-seven".