501010542 has 16 divisors (see below), whose sum is σ = 1113356880. Its totient is φ = 167003496.

The previous prime is 501010513. The next prime is 501010547. The reversal of 501010542 is 245010105.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501010547) 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 7 ways as a sum of consecutive naturals, for example, 4638933 + ... + 4639040.

It is an arithmetic number, because the mean of its divisors is an integer number (69584805).

Almost surely, 2^501010542 is an apocalyptic number.

501010542 is an abundant number, since it is smaller than the sum of its proper divisors (612346338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

501010542 is a wasteful number, since it uses less digits than its factorization.

501010542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9277984 (or 9277978 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 501010542 is about 22383.2647752735. The cubic root of 501010542 is about 794.2348779668.

Adding to 501010542 its reverse (245010105), we get a palindrome (746020647).

The spelling of 501010542 in words is "five hundred one million, ten thousand, five hundred forty-two".