53708040 has 96 divisors (see below), whose sum is σ = 175682520. Its totient is φ = 14229504.

The previous prime is 53707963. The next prime is 53708051. The reversal of 53708040 is 4080735.

It can be written as a sum of positive squares in 4 ways, for example, as 22638564 + 31069476 = 4758^2 + 5574^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53707995 and 53708013.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69094 + ... + 69866.

Almost surely, 2^53708040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53708040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87841260).

53708040 is an abundant number, since it is smaller than the sum of its proper divisors (121974480).

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

53708040 is a wasteful number, since it uses less digits than its factorization.

53708040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983 (or 976 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 53708040 is about 7328.5769423538. The cubic root of 53708040 is about 377.2938862843.

Adding to 53708040 its reverse (4080735), we get a palindrome (57788775).

The spelling of 53708040 in words is "fifty-three million, seven hundred eight thousand, forty".