53866073 has 4 divisors (see below), whose sum is σ = 54882468. Its totient is φ = 52849680.

The previous prime is 53866063. The next prime is 53866091. The reversal of 53866073 is 37066835.

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 31663129 + 22202944 = 5627^2 + 4712^2 .

It is a cyclic number.

It is not a de Polignac number, because 53866073 - 2⁶ = 53866009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53866063) 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, 508118 + ... + 508223.

It is an arithmetic number, because the mean of its divisors is an integer number (13720617).

Almost surely, 2^53866073 is an apocalyptic number.

53866073 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

53866073 is a deficient number, since it is larger than the sum of its proper divisors (1016395).

53866073 is a wasteful number, since it uses less digits than its factorization.

53866073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016394.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 53866073 is about 7339.3509931056. The cubic root of 53866073 is about 377.6635795316.

The spelling of 53866073 in words is "fifty-three million, eight hundred sixty-six thousand, seventy-three".