505711053 has 16 divisors (see below), whose sum is σ = 793272960. Its totient is φ = 317308608.

The previous prime is 505711043. The next prime is 505711069. The reversal of 505711053 is 350117505.

It is not a de Polignac number, because 505711053 - 2⁸ = 505710797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505711033) 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, 550425 + ... + 551342.

It is an arithmetic number, because the mean of its divisors is an integer number (49579560).

Almost surely, 2^505711053 is an apocalyptic number.

It is an amenable number.

505711053 is a deficient number, since it is larger than the sum of its proper divisors (287561907).

505711053 is a wasteful number, since it uses less digits than its factorization.

505711053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101793 (or 1101787 counting only the distinct ones).

The product of its (nonzero) digits is 2625, while the sum is 27.

The square root of 505711053 is about 22488.0202107700. The cubic root of 505711053 is about 796.7110034284.

Adding to 505711053 its reverse (350117505), we get a palindrome (855828558).

It can be divided in two parts, 5057 and 11053, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 505711053 in words is "five hundred five million, seven hundred eleven thousand, fifty-three".