52550136 has 96 divisors (see below), whose sum is σ = 148599360. Its totient is φ = 16763136.

The previous prime is 52550131. The next prime is 52550137. The reversal of 52550136 is 63105525.

52550136 is a `hidden beast` number, since 525 + 5 + 0 + 136 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52550131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179206 + ... + 179498.

It is an arithmetic number, because the mean of its divisors is an integer number (1547910).

Almost surely, 2^52550136 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 52550136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74299680).

52550136 is an abundant number, since it is smaller than the sum of its proper divisors (96049224).

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

52550136 is a wasteful number, since it uses less digits than its factorization.

52550136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 52550136 is about 7249.1472601955. The cubic root of 52550136 is about 374.5627757580.

The spelling of 52550136 in words is "fifty-two million, five hundred fifty thousand, one hundred thirty-six".