505255221053 has 16 divisors (see below), whose sum is σ = 553180024320. Its totient is φ = 457663575600.

The previous prime is 505255220999. The next prime is 505255221071. The reversal of 505255221053 is 350122552505.

It is not a de Polignac number, because 505255221053 - 2⁶ = 505255220989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505255224053) 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, 10007888 + ... + 10058246.

It is an arithmetic number, because the mean of its divisors is an integer number (34573751520).

Almost surely, 2^505255221053 is an apocalyptic number.

It is an amenable number.

505255221053 is a deficient number, since it is larger than the sum of its proper divisors (47924803267).

505255221053 is a wasteful number, since it uses less digits than its factorization.

505255221053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53648.

The product of its (nonzero) digits is 75000, while the sum is 35.

Adding to 505255221053 its reverse (350122552505), we get a palindrome (855377773558).

The spelling of 505255221053 in words is "five hundred five billion, two hundred fifty-five million, two hundred twenty-one thousand, fifty-three".