53205656 has 32 divisors (see below), whose sum is σ = 115395840. Its totient is φ = 22525728.

The previous prime is 53205653. The next prime is 53205679. The reversal of 53205656 is 65650235.

53205656 is a modest number, since divided by 5656 gives 5320 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53205653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076 + ... + 10371.

It is an arithmetic number, because the mean of its divisors is an integer number (3606120).

Almost surely, 2^53205656 is an apocalyptic number.

53205656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

53205656 is an abundant number, since it is smaller than the sum of its proper divisors (62190184).

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

53205656 is a wasteful number, since it uses less digits than its factorization.

53205656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11543 (or 11539 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 53205656 is about 7294.2207260269. The cubic root of 53205656 is about 376.1137991141.

The spelling of 53205656 in words is "fifty-three million, two hundred five thousand, six hundred fifty-six".