53687613 has 32 divisors (see below), whose sum is σ = 85248000. Its totient is φ = 29405376.

The previous prime is 53687591. The next prime is 53687633. The reversal of 53687613 is 31678635.

It is not a de Polignac number, because 53687613 - 2⁶ = 53687549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53687633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120970 + ... + 121412.

It is an arithmetic number, because the mean of its divisors is an integer number (2664000).

Almost surely, 2^53687613 is an apocalyptic number.

It is an amenable number.

53687613 is a deficient number, since it is larger than the sum of its proper divisors (31560387).

53687613 is a wasteful number, since it uses less digits than its factorization.

53687613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681.

The product of its digits is 90720, while the sum is 39.

The square root of 53687613 is about 7327.1831558929. The cubic root of 53687613 is about 377.2460476398.

The spelling of 53687613 in words is "fifty-three million, six hundred eighty-seven thousand, six hundred thirteen".