506623853 has 2 divisors, whose sum is σ = 506623854. Its totient is φ = 506623852.

The previous prime is 506623841. The next prime is 506623877. The reversal of 506623853 is 358326605.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313219204 + 193404649 = 17698^2 + 13907^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506623853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506623153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253311926 + 253311927.

It is an arithmetic number, because the mean of its divisors is an integer number (253311927).

Almost surely, 2^506623853 is an apocalyptic number.

It is an amenable number.

506623853 is a deficient number, since it is larger than the sum of its proper divisors (1).

506623853 is an equidigital number, since it uses as much as digits as its factorization.

506623853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 506623853 is about 22508.3063112265. The cubic root of 506623853 is about 797.1900653269.

The spelling of 506623853 in words is "five hundred six million, six hundred twenty-three thousand, eight hundred fifty-three".