53550756 has 144 divisors (see below), whose sum is σ = 162908928. Its totient is φ = 14515200.

The previous prime is 53550727. The next prime is 53550767. The reversal of 53550756 is 65705535.

53550756 is a `hidden beast` number, since 53 + 550 + 7 + 56 = 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 53550756.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 733536 + ... + 733608.

It is an arithmetic number, because the mean of its divisors is an integer number (1131312).

Almost surely, 2^53550756 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 53550756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81454464).

53550756 is an abundant number, since it is smaller than the sum of its proper divisors (109358172).

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

53550756 is a wasteful number, since it uses less digits than its factorization.

53550756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 36.

The square root of 53550756 is about 7317.8382053719. The cubic root of 53550756 is about 376.9252244477.

The spelling of 53550756 in words is "fifty-three million, five hundred fifty thousand, seven hundred fifty-six".