52561158 has 32 divisors (see below), whose sum is σ = 114815232. Its totient is φ = 15943200.

The previous prime is 52561129. The next prime is 52561183. The reversal of 52561158 is 85116525.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 793 + ... + 10283.

It is an arithmetic number, because the mean of its divisors is an integer number (3587976).

Almost surely, 2^52561158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52561158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57407616).

52561158 is an abundant number, since it is smaller than the sum of its proper divisors (62254074).

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

52561158 is a wasteful number, since it uses less digits than its factorization.

52561158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9580.

The product of its digits is 12000, while the sum is 33.

The square root of 52561158 is about 7249.9074476851. The cubic root of 52561158 is about 374.5889611791.

The spelling of 52561158 in words is "fifty-two million, five hundred sixty-one thousand, one hundred fifty-eight".