501340523 has 16 divisors (see below), whose sum is σ = 545499360. Its totient is φ = 458981376.

The previous prime is 501340459. The next prime is 501340531. The reversal of 501340523 is 325043105.

It is a cyclic number.

It is not a de Polignac number, because 501340523 - 2⁶ = 501340459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501340573) 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, 94715 + ... + 99867.

It is an arithmetic number, because the mean of its divisors is an integer number (34093710).

Almost surely, 2^501340523 is an apocalyptic number.

501340523 is a deficient number, since it is larger than the sum of its proper divisors (44158837).

501340523 is a wasteful number, since it uses less digits than its factorization.

501340523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5326.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 501340523 is about 22390.6347163273. The cubic root of 501340523 is about 794.4092088972.

Adding to 501340523 its reverse (325043105), we get a palindrome (826383628).

The spelling of 501340523 in words is "five hundred one million, three hundred forty thousand, five hundred twenty-three".