53562500 has 42 divisors (see below), whose sum is σ = 117303186. Its totient is φ = 21400000.

The previous prime is 53562499. The next prime is 53562503. The reversal of 53562500 is 526535.

It can be written as a sum of positive squares in 7 ways, for example, as 50951044 + 2611456 = 7138^2 + 1616^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53562500.

It is not an unprimeable number, because it can be changed into a prime (53562503) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 62072 + ... + 62928.

It is an arithmetic number, because the mean of its divisors is an integer number (2792933).

Almost surely, 2^53562500 is an apocalyptic number.

53562500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53562500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58651593).

53562500 is an abundant number, since it is smaller than the sum of its proper divisors (63740686).

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

53562500 is an frugal number, since it uses more digits than its factorization.

53562500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 53562500 is about 7318.6405841522. The cubic root of 53562500 is about 376.9527764165.

The spelling of 53562500 in words is "fifty-three million, five hundred sixty-two thousand, five hundred".