53690688 has 70 divisors (see below), whose sum is σ = 159171386. Its totient is φ = 17895168.

The previous prime is 53690627. The next prime is 53690753. The reversal of 53690688 is 88609635.

It can be written as a sum of positive squares in only one way, i.e., 45805824 + 7884864 = 6768^2 + 2808^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6 + ... + 10362.

Almost surely, 2^53690688 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 53690688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79585693).

53690688 is an abundant number, since it is smaller than the sum of its proper divisors (105480698).

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

53690688 is a wasteful number, since it uses less digits than its factorization.

53690688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10381 (or 10362 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 53690688 is about 7327.3929879596. The cubic root of 53690688 is about 377.2532498564.

The spelling of 53690688 in words is "fifty-three million, six hundred ninety thousand, six hundred eighty-eight".