501215061 has 16 divisors (see below), whose sum is σ = 687800000. Its totient is φ = 324425088.

The previous prime is 501215059. The next prime is 501215069. The reversal of 501215061 is 160512105.

It is not a de Polignac number, because 501215061 - 2¹ = 501215059 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501215069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50865 + ... + 59913.

It is an arithmetic number, because the mean of its divisors is an integer number (42987500).

Almost surely, 2^501215061 is an apocalyptic number.

It is an amenable number.

501215061 is a deficient number, since it is larger than the sum of its proper divisors (186584939).

501215061 is a wasteful number, since it uses less digits than its factorization.

501215061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9588.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 501215061 is about 22387.8328785972. The cubic root of 501215061 is about 794.3429355901.

Adding to 501215061 its reverse (160512105), we get a palindrome (661727166).

The spelling of 501215061 in words is "five hundred one million, two hundred fifteen thousand, sixty-one".