53613857 has 8 divisors (see below), whose sum is σ = 58551552. Its totient is φ = 48686800.

The previous prime is 53613853. The next prime is 53613907. The reversal of 53613857 is 75831635.

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 53613857 - 2² = 53613853 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53613857.

It is not an unprimeable number, because it can be changed into a prime (53613853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10928 + ... + 15054.

It is an arithmetic number, because the mean of its divisors is an integer number (7318944).

Almost surely, 2^53613857 is an apocalyptic number.

It is an amenable number.

53613857 is a deficient number, since it is larger than the sum of its proper divisors (4937695).

53613857 is a wasteful number, since it uses less digits than its factorization.

53613857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5319.

The product of its digits is 75600, while the sum is 38.

The square root of 53613857 is about 7322.1483869149. The cubic root of 53613857 is about 377.0732150299.

The spelling of 53613857 in words is "fifty-three million, six hundred thirteen thousand, eight hundred fifty-seven".