53253620 has 24 divisors (see below), whose sum is σ = 127809024. Its totient is φ = 18258336.

The previous prime is 53253617. The next prime is 53253647. The reversal of 53253620 is 2635235.

It is a self number, because there is not a number n which added to its sum of digits gives 53253620.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190052 + ... + 190331.

It is an arithmetic number, because the mean of its divisors is an integer number (5325376).

Almost surely, 2^53253620 is an apocalyptic number.

It is an amenable number.

53253620 is an abundant number, since it is smaller than the sum of its proper divisors (74555404).

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

53253620 is a wasteful number, since it uses less digits than its factorization.

53253620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380399 (or 380397 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 53253620 is about 7297.5077937608. The cubic root of 53253620 is about 376.2267852477.

Adding to 53253620 its reverse (2635235), we get a palindrome (55888855).

The spelling of 53253620 in words is "fifty-three million, two hundred fifty-three thousand, six hundred twenty".