501688475 has 6 divisors (see below), whose sum is σ = 622093740. Its totient is φ = 401350760.

The previous prime is 501688471. The next prime is 501688477. The reversal of 501688475 is 574886105.

It is a happy number.

It is not a de Polignac number, because 501688475 - 2² = 501688471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (501688471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10033745 + ... + 10033794.

It is an arithmetic number, because the mean of its divisors is an integer number (103682290).

Almost surely, 2^501688475 is an apocalyptic number.

501688475 is a deficient number, since it is larger than the sum of its proper divisors (120405265).

501688475 is a wasteful number, since it uses less digits than its factorization.

501688475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20067549 (or 20067544 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 501688475 is about 22398.4034029214. The cubic root of 501688475 is about 794.5929511753.

The spelling of 501688475 in words is "five hundred one million, six hundred eighty-eight thousand, four hundred seventy-five".