53687093 has 4 divisors (see below), whose sum is σ = 53702220. Its totient is φ = 53671968.

The previous prime is 53687077. The next prime is 53687099. The reversal of 53687093 is 39078635.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 39078635 = 5 ⋅7815727.

It can be written as a sum of positive squares in 2 ways, for example, as 42941809 + 10745284 = 6553^2 + 3278^2 .

It is a cyclic number.

It is not a de Polignac number, because 53687093 - 2⁴ = 53687077 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 53687093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53687099) 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, 971 + ... + 10407.

It is an arithmetic number, because the mean of its divisors is an integer number (13425555).

Almost surely, 2^53687093 is an apocalyptic number.

It is an amenable number.

53687093 is a deficient number, since it is larger than the sum of its proper divisors (15127).

53687093 is an equidigital number, since it uses as much as digits as its factorization.

53687093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15126.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 53687093 is about 7327.1476715022. The cubic root of 53687093 is about 377.2448296768.

The spelling of 53687093 in words is "fifty-three million, six hundred eighty-seven thousand, ninety-three".