53007505 has 8 divisors (see below), whose sum is σ = 65802600. Its totient is φ = 40943616.

The previous prime is 53007503. The next prime is 53007553. The reversal of 53007505 is 50570035.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1498176 + 51509329 = 1224^2 + 7177^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 53007505 - 2¹ = 53007503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53007505.

It is not an unprimeable number, because it can be changed into a prime (53007503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182640 + ... + 182929.

It is an arithmetic number, because the mean of its divisors is an integer number (8225325).

Almost surely, 2^53007505 is an apocalyptic number.

It is an amenable number.

53007505 is a deficient number, since it is larger than the sum of its proper divisors (12795095).

53007505 is a wasteful number, since it uses less digits than its factorization.

53007505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365603.

The product of its (nonzero) digits is 2625, while the sum is 25.

The square root of 53007505 is about 7280.6253165508. The cubic root of 53007505 is about 375.6463047265.

The spelling of 53007505 in words is "fifty-three million, seven thousand, five hundred five".