53397705 has 16 divisors (see below), whose sum is σ = 85527360. Its totient is φ = 28448448.

The previous prime is 53397667. The next prime is 53397713. The reversal of 53397705 is 50779335.

53397705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53397705 - 2¹² = 53393609 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 24594 + ... + 26676.

It is an arithmetic number, because the mean of its divisors is an integer number (5345460).

Almost surely, 2^53397705 is an apocalyptic number.

It is an amenable number.

53397705 is a deficient number, since it is larger than the sum of its proper divisors (32129655).

53397705 is a wasteful number, since it uses less digits than its factorization.

53397705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3800.

The product of its (nonzero) digits is 99225, while the sum is 39.

The square root of 53397705 is about 7307.3733310951. The cubic root of 53397705 is about 376.5657908093.

The spelling of 53397705 in words is "fifty-three million, three hundred ninety-seven thousand, seven hundred five".