53440705 has 8 divisors (see below), whose sum is σ = 64305792. Its totient is φ = 42634608.

The previous prime is 53440693. The next prime is 53440729. The reversal of 53440705 is 50704435.

53440705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 53440705 - 2¹¹ = 53438657 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, 12727 + ... + 16396.

It is an arithmetic number, because the mean of its divisors is an integer number (8038224).

Almost surely, 2^53440705 is an apocalyptic number.

It is an amenable number.

53440705 is a deficient number, since it is larger than the sum of its proper divisors (10865087).

53440705 is a wasteful number, since it uses less digits than its factorization.

53440705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29495.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 53440705 is about 7310.3149726944. The cubic root of 53440705 is about 376.6668437448. Note that the first 3 decimals are identical.

It can be divided in two parts, 53440 and 705, that added together give a palindrome (54145).

The spelling of 53440705 in words is "fifty-three million, four hundred forty thousand, seven hundred five".