53245620 has 96 divisors (see below), whose sum is σ = 167005440. Its totient is φ = 14083200.

The previous prime is 53245589. The next prime is 53245691. The reversal of 53245620 is 2654235.

53245620 is a `hidden beast` number, since 5 + 32 + 4 + 5 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81214 + ... + 81866.

It is an arithmetic number, because the mean of its divisors is an integer number (1739640).

Almost surely, 2^53245620 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 53245620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83502720).

53245620 is an abundant number, since it is smaller than the sum of its proper divisors (113759820).

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

53245620 is a wasteful number, since it uses less digits than its factorization.

53245620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 53245620 is about 7296.9596408367. The cubic root of 53245620 is about 376.2079448070.

Adding to 53245620 its reverse (2654235), we get a palindrome (55899855).

The spelling of 53245620 in words is "fifty-three million, two hundred forty-five thousand, six hundred twenty".