501212061 has 48 divisors (see below), whose sum is σ = 858144768. Its totient is φ = 275853600.

The previous prime is 501212057. The next prime is 501212069. The reversal of 501212061 is 160212105.

It is not a de Polignac number, because 501212061 - 2² = 501212057 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501212069) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 528790 + ... + 529736.

It is an arithmetic number, because the mean of its divisors is an integer number (17878016).

Almost surely, 2^501212061 is an apocalyptic number.

It is an amenable number.

501212061 is a deficient number, since it is larger than the sum of its proper divisors (356932707).

501212061 is a wasteful number, since it uses less digits than its factorization.

501212061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262 (or 1259 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 501212061 is about 22387.7658778182. The cubic root of 501212061 is about 794.3413507524.

Adding to 501212061 its reverse (160212105), we get a palindrome (661424166).

The spelling of 501212061 in words is "five hundred one million, two hundred twelve thousand, sixty-one".