53818561 has 8 divisors (see below), whose sum is σ = 54950400. Its totient is φ = 52694160.

The previous prime is 53818559. The next prime is 53818571. The reversal of 53818561 is 16581835.

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 53818561 - 2¹ = 53818559 is a prime.

It is a super-2 number, since 2×53818561² = 5792875016221442, which contains 22 as substring.

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 53818561.

It is not an unprimeable number, because it can be changed into a prime (53818571) 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, 14176 + ... + 17566.

It is an arithmetic number, because the mean of its divisors is an integer number (6868800).

Almost surely, 2^53818561 is an apocalyptic number.

It is an amenable number.

53818561 is a deficient number, since it is larger than the sum of its proper divisors (1131839).

53818561 is a wasteful number, since it uses less digits than its factorization.

53818561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719.

The product of its digits is 28800, while the sum is 37.

The square root of 53818561 is about 7336.1134805836. The cubic root of 53818561 is about 377.5525088136.

The spelling of 53818561 in words is "fifty-three million, eight hundred eighteen thousand, five hundred sixty-one".