501147623 has 2 divisors, whose sum is σ = 501147624. Its totient is φ = 501147622.

The previous prime is 501147589. The next prime is 501147631. The reversal of 501147623 is 326741105.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501147623 is a prime.

It is a super-2 number, since 2×501147623² = 502297880077100258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501147653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250573811 + 250573812.

It is an arithmetic number, because the mean of its divisors is an integer number (250573812).

Almost surely, 2^501147623 is an apocalyptic number.

501147623 is a deficient number, since it is larger than the sum of its proper divisors (1).

501147623 is an equidigital number, since it uses as much as digits as its factorization.

501147623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 501147623 is about 22386.3266973392. The cubic root of 501147623 is about 794.3073079685.

Adding to 501147623 its reverse (326741105), we get a palindrome (827888728).

The spelling of 501147623 in words is "five hundred one million, one hundred forty-seven thousand, six hundred twenty-three".