53122505 has 8 divisors (see below), whose sum is σ = 63786312. Its totient is φ = 42471808.

The previous prime is 53122493. The next prime is 53122529. The reversal of 53122505 is 50522135.

53122505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 182329 + 52940176 = 427^2 + 7276^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53122505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12989 + ... + 16581.

It is an arithmetic number, because the mean of its divisors is an integer number (7973289).

Almost surely, 2^53122505 is an apocalyptic number.

It is an amenable number.

53122505 is a deficient number, since it is larger than the sum of its proper divisors (10663807).

53122505 is a wasteful number, since it uses less digits than its factorization.

53122505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6555.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 53122505 is about 7288.5187109590. The cubic root of 53122505 is about 375.9177639112.

The spelling of 53122505 in words is "fifty-three million, one hundred twenty-two thousand, five hundred five".