505435153 has 2 divisors, whose sum is σ = 505435154. Its totient is φ = 505435152.

The previous prime is 505435121. The next prime is 505435157. The reversal of 505435153 is 351534505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 505035729 + 399424 = 22473^2 + 632^2 .

It is a cyclic number.

It is not a de Polignac number, because 505435153 - 2⁵ = 505435121 is a prime.

It is equal to p_26626612 and since 505435153 and 26626612 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (505435157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252717576 + 252717577.

It is an arithmetic number, because the mean of its divisors is an integer number (252717577).

Almost surely, 2^505435153 is an apocalyptic number.

It is an amenable number.

505435153 is a deficient number, since it is larger than the sum of its proper divisors (1).

505435153 is an equidigital number, since it uses as much as digits as its factorization.

505435153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 505435153 is about 22481.8849965923. The cubic root of 505435153 is about 796.5660902736.

Adding to 505435153 its reverse (351534505), we get a palindrome (856969658).

It can be divided in two parts, 50543 and 5153, that added together give a square (55696 = 236²).

The spelling of 505435153 in words is "five hundred five million, four hundred thirty-five thousand, one hundred fifty-three".