53685624 has 16 divisors (see below), whose sum is σ = 134214120. Its totient is φ = 17895200.

The previous prime is 53685617. The next prime is 53685649. The reversal of 53685624 is 42658635.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1118427 + ... + 1118474.

Almost surely, 2^53685624 is an apocalyptic number.

It is an amenable number.

53685624 is an abundant number, since it is smaller than the sum of its proper divisors (80528496).

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

53685624 is a wasteful number, since it uses less digits than its factorization.

53685624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236910 (or 2236906 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 53685624 is about 7327.0474271701. The cubic root of 53685624 is about 377.2413888889.

The spelling of 53685624 in words is "fifty-three million, six hundred eighty-five thousand, six hundred twenty-four".