53556905 has 8 divisors (see below), whose sum is σ = 64308552. Its totient is φ = 42818688.

The previous prime is 53556889. The next prime is 53556911. The reversal of 53556905 is 50965535.

It is a happy number.

53556905 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 16736281 + 36820624 = 4091^2 + 6068^2 .

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 53556905 - 2⁴ = 53556889 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, 11039 + ... + 15131.

It is an arithmetic number, because the mean of its divisors is an integer number (8038569).

Almost surely, 2^53556905 is an apocalyptic number.

It is an amenable number.

53556905 is a deficient number, since it is larger than the sum of its proper divisors (10751647).

53556905 is a wasteful number, since it uses less digits than its factorization.

53556905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6715.

The product of its (nonzero) digits is 101250, while the sum is 38.

The square root of 53556905 is about 7318.2583310512. The cubic root of 53556905 is about 376.9396507893.

The spelling of 53556905 in words is "fifty-three million, five hundred fifty-six thousand, nine hundred five".