53618040 has 96 divisors (see below), whose sum is σ = 199162080. Its totient is φ = 12254976.

The previous prime is 53618009. The next prime is 53618041. The reversal of 53618040 is 4081635.

53618040 is a `hidden beast` number, since 5 + 3 + 618 + 0 + 40 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 53617995 and 53618013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53618041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8119 + ... + 13158.

It is an arithmetic number, because the mean of its divisors is an integer number (2074605).

Almost surely, 2^53618040 is an apocalyptic number.

It is an amenable number.

53618040 is an abundant number, since it is smaller than the sum of its proper divisors (145544040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53618040 is a wasteful number, since it uses less digits than its factorization.

53618040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21301 (or 21294 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 53618040 is about 7322.4340215532. The cubic root of 53618040 is about 377.0830213022.

Adding to 53618040 its reverse (4081635), we get a palindrome (57699675).

The spelling of 53618040 in words is "fifty-three million, six hundred eighteen thousand, forty".