501475887 has 16 divisors (see below), whose sum is σ = 810466560. Its totient is φ = 303924600.

The previous prime is 501475867. The next prime is 501475889. The reversal of 501475887 is 788574105.

It is a happy number.

501475887 is a `hidden beast` number, since 50 + 14 + 7 + 588 + 7 = 666.

It is not a de Polignac number, because 501475887 - 2⁶ = 501475823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501475889) 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 15 ways as a sum of consecutive naturals, for example, 843939 + ... + 844532.

It is an arithmetic number, because the mean of its divisors is an integer number (50654160).

Almost surely, 2^501475887 is an apocalyptic number.

501475887 is a deficient number, since it is larger than the sum of its proper divisors (308990673).

501475887 is a wasteful number, since it uses less digits than its factorization.

501475887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688491 (or 1688485 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 45.

The square root of 501475887 is about 22393.6572939750. The cubic root of 501475887 is about 794.4807003795.

The spelling of 501475887 in words is "five hundred one million, four hundred seventy-five thousand, eight hundred eighty-seven".