53605620 has 36 divisors (see below), whose sum is σ = 162604260. Its totient is φ = 14294784.

The previous prime is 53605619. The next prime is 53605621. The reversal of 53605620 is 2650635.

53605620 is a `hidden beast` number, since 5 + 36 + 0 + 5 + 620 = 666.

It is an interprime number because it is at equal distance from previous prime (53605619) and next prime (53605621).

It can be written as a sum of positive squares in 2 ways, for example, as 40602384 + 13003236 = 6372^2 + 3606^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53605621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148725 + ... + 149084.

It is an arithmetic number, because the mean of its divisors is an integer number (4516785).

Almost surely, 2^53605620 is an apocalyptic number.

It is an amenable number.

53605620 is an abundant number, since it is smaller than the sum of its proper divisors (108998640).

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

53605620 is a wasteful number, since it uses less digits than its factorization.

53605620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297824 (or 297819 counting only the distinct ones).

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

The square root of 53605620 is about 7321.5858937801. The cubic root of 53605620 is about 377.0539034108.

The spelling of 53605620 in words is "fifty-three million, six hundred five thousand, six hundred twenty".