501531252152 has 32 divisors (see below), whose sum is σ = 1079444257920. Its totient is φ = 213995078880.

The previous prime is 501531252151. The next prime is 501531252179. The reversal of 501531252152 is 251252135105.

It is a super-2 number, since 2×501531252152² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501531252151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19713974 + ... + 19739397.

It is an arithmetic number, because the mean of its divisors is an integer number (33732633060).

Almost surely, 2^501531252152 is an apocalyptic number.

It is an amenable number.

501531252152 is an abundant number, since it is smaller than the sum of its proper divisors (577913005768).

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

501531252152 is a wasteful number, since it uses less digits than its factorization.

501531252152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39453611 (or 39453607 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 501531252152 its reverse (251252135105), we get a palindrome (752783387257).

The spelling of 501531252152 in words is "five hundred one billion, five hundred thirty-one million, two hundred fifty-two thousand, one hundred fifty-two".