53709695505 has 24 divisors (see below), whose sum is σ = 93133413672. Its totient is φ = 28633906944.

The previous prime is 53709695503. The next prime is 53709695509. The reversal of 53709695505 is 50559690735.

It is a happy number.

53709695505 is a `hidden beast` number, since 5 + 3 + 70 + 9 + 69 + 5 + 505 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 13889093904 + 39820601601 = 117852^2 + 199551^2 .

It is not a de Polignac number, because 53709695505 - 2¹ = 53709695503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53709695503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118324 + ... + 348453.

It is an arithmetic number, because the mean of its divisors is an integer number (3880558903).

Almost surely, 2^53709695505 is an apocalyptic number.

It is an amenable number.

53709695505 is a deficient number, since it is larger than the sum of its proper divisors (39423718167).

53709695505 is a wasteful number, since it uses less digits than its factorization.

53709695505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469345 (or 469342 counting only the distinct ones).

The product of its (nonzero) digits is 6378750, while the sum is 54.

The spelling of 53709695505 in words is "fifty-three billion, seven hundred nine million, six hundred ninety-five thousand, five hundred five".