53925840 has 60 divisors (see below), whose sum is σ = 181103364. Its totient is φ = 14380032.

The previous prime is 53925797. The next prime is 53925863. The reversal of 53925840 is 4852935.

It can be written as a sum of positive squares in 2 ways, for example, as 5817744 + 48108096 = 2412^2 + 6936^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 53925795 and 53925804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36729 + ... + 38168.

Almost surely, 2^53925840 is an apocalyptic number.

It is an amenable number.

53925840 is an abundant number, since it is smaller than the sum of its proper divisors (127177524).

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

53925840 is a wasteful number, since it uses less digits than its factorization.

53925840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74916 (or 74907 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 53925840 is about 7343.4215458463. The cubic root of 53925840 is about 377.8032065416.

The spelling of 53925840 in words is "fifty-three million, nine hundred twenty-five thousand, eight hundred forty".