501161607 has 16 divisors (see below), whose sum is σ = 743611360. Its totient is φ = 333590400.

The previous prime is 501161599. The next prime is 501161663. The reversal of 501161607 is 706161105.

501161607 is a `hidden beast` number, since 50 + 1 + 1 + 6 + 1 + 607 = 666.

It is not a de Polignac number, because 501161607 - 2³ = 501161599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501160607) 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, 3807 + ... + 31887.

It is an arithmetic number, because the mean of its divisors is an integer number (46475710).

Almost surely, 2^501161607 is an apocalyptic number.

501161607 is a deficient number, since it is larger than the sum of its proper divisors (242449753).

501161607 is a wasteful number, since it uses less digits than its factorization.

501161607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28751 (or 28745 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 501161607 is about 22386.6390286707. The cubic root of 501161607 is about 794.3146960045.

The spelling of 501161607 in words is "five hundred one million, one hundred sixty-one thousand, six hundred seven".