53544817 has 4 divisors (see below), whose sum is σ = 55391220. Its totient is φ = 51698416.

The previous prime is 53544779. The next prime is 53544839. The reversal of 53544817 is 71844535.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44836416 + 8708401 = 6696^2 + 2951^2 .

It is not a de Polignac number, because 53544817 - 2¹⁵ = 53512049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53544017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 923158 + ... + 923215.

It is an arithmetic number, because the mean of its divisors is an integer number (13847805).

Almost surely, 2^53544817 is an apocalyptic number.

It is an amenable number.

53544817 is a deficient number, since it is larger than the sum of its proper divisors (1846403).

53544817 is a wasteful number, since it uses less digits than its factorization.

53544817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846402.

The product of its digits is 67200, while the sum is 37.

The square root of 53544817 is about 7317.4324048808. The cubic root of 53544817 is about 376.9112897445.

The spelling of 53544817 in words is "fifty-three million, five hundred forty-four thousand, eight hundred seventeen".