53065620 has 36 divisors (see below), whose sum is σ = 160966260. Its totient is φ = 14150784.

The previous prime is 53065609. The next prime is 53065633. The reversal of 53065620 is 2656035.

53065620 is a `hidden beast` number, since 5 + 3 + 0 + 656 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 26501904 + 26563716 = 5148^2 + 5154^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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, 147225 + ... + 147584.

It is an arithmetic number, because the mean of its divisors is an integer number (4471285).

Almost surely, 2^53065620 is an apocalyptic number.

It is an amenable number.

53065620 is an abundant number, since it is smaller than the sum of its proper divisors (107900640).

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

53065620 is a wasteful number, since it uses less digits than its factorization.

53065620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294824 (or 294819 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 53065620 is about 7284.6152952644. The cubic root of 53065620 is about 375.7835350540.

The spelling of 53065620 in words is "fifty-three million, sixty-five thousand, six hundred twenty".