53163505 has 16 divisors (see below), whose sum is σ = 68829264. Its totient is φ = 39270400.

The previous prime is 53163493. The next prime is 53163541. The reversal of 53163505 is 50536135.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2241009 + 50922496 = 1497^2 + 7136^2 .

It is not a de Polignac number, because 53163505 - 2²³ = 44774897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1396 + ... + 10405.

It is an arithmetic number, because the mean of its divisors is an integer number (4301829).

Almost surely, 2^53163505 is an apocalyptic number.

It is an amenable number.

53163505 is a deficient number, since it is larger than the sum of its proper divisors (15665759).

53163505 is a wasteful number, since it uses less digits than its factorization.

53163505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11876.

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 53163505 is about 7291.3308113128. The cubic root of 53163505 is about 376.0144502708.

The spelling of 53163505 in words is "fifty-three million, one hundred sixty-three thousand, five hundred five".