501138827 has 6 divisors (see below), whose sum is σ = 582957468. Its totient is φ = 429547524.

The previous prime is 501138823. The next prime is 501138853. The reversal of 501138827 is 728831105.

It is not a de Polignac number, because 501138827 - 2² = 501138823 is a prime.

It is a super-2 number, since 2×501138827² = 502280247853871858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501138823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5113613 + ... + 5113710.

It is an arithmetic number, because the mean of its divisors is an integer number (97159578).

Almost surely, 2^501138827 is an apocalyptic number.

501138827 is a deficient number, since it is larger than the sum of its proper divisors (81818641).

501138827 is a wasteful number, since it uses less digits than its factorization.

501138827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10227337 (or 10227330 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 501138827 is about 22386.1302372697. The cubic root of 501138827 is about 794.3026607896.

The spelling of 501138827 in words is "five hundred one million, one hundred thirty-eight thousand, eight hundred twenty-seven".