501325155542231 has 4 divisors (see below), whose sum is σ = 508807620550392. Its totient is φ = 493842690534072.

The previous prime is 501325155542227. The next prime is 501325155542269. The reversal of 501325155542231 is 132245551523105.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 501325155542231 - 2² = 501325155542227 is a prime.

It is a super-2 number, since 2×501325155542231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501325155542201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3741232503980 + ... + 3741232504113.

It is an arithmetic number, because the mean of its divisors is an integer number (127201905137598).

Almost surely, 2^{501325155542231} is an apocalyptic number.

501325155542231 is a deficient number, since it is larger than the sum of its proper divisors (7482465008161).

501325155542231 is an equidigital number, since it uses as much as digits as its factorization.

501325155542231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7482465008160.

The product of its (nonzero) digits is 900000, while the sum is 44.

The spelling of 501325155542231 in words is "five hundred one trillion, three hundred twenty-five billion, one hundred fifty-five million, five hundred forty-two thousand, two hundred thirty-one".