53255556 has 120 divisors (see below), whose sum is σ = 150833760. Its totient is φ = 16329600.

The previous prime is 53255533. The next prime is 53255563. The reversal of 53255556 is 65555235.

53255556 is a `hidden beast` number, since 53 + 2 + 55 + 556 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 53255556.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 252291 + ... + 252501.

It is an arithmetic number, because the mean of its divisors is an integer number (1256948).

Almost surely, 2^53255556 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 53255556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75416880).

53255556 is an abundant number, since it is smaller than the sum of its proper divisors (97578204).

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

53255556 is a wasteful number, since it uses less digits than its factorization.

53255556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 276 counting only the distinct ones).

The product of its digits is 112500, while the sum is 36.

The square root of 53255556 is about 7297.6404405808. The cubic root of 53255556 is about 376.2313443508.

The spelling of 53255556 in words is "fifty-three million, two hundred fifty-five thousand, five hundred fifty-six".