53205536 has 48 divisors (see below), whose sum is σ = 108591840. Its totient is φ = 25643520.

The previous prime is 53205521. The next prime is 53205541. The reversal of 53205536 is 63550235.

It is a happy number.

It is a super-2 number, since 2×53205536² = 5661658122094592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53205499 and 53205508.

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, 140195 + ... + 140573.

It is an arithmetic number, because the mean of its divisors is an integer number (2262330).

Almost surely, 2^53205536 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 53205536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54295920).

53205536 is an abundant number, since it is smaller than the sum of its proper divisors (55386304).

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

53205536 is a wasteful number, since it uses less digits than its factorization.

53205536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 53205536 is about 7294.2125003320. The cubic root of 53205536 is about 376.1135163516.

The spelling of 53205536 in words is "fifty-three million, two hundred five thousand, five hundred thirty-six".