52111556 has 24 divisors (see below), whose sum is σ = 105260736. Its totient is φ = 22111200.

The previous prime is 52111531. The next prime is 52111559. The reversal of 52111556 is 65511125.

It is a super-2 number, since 2×52111556² = 5431228537482272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52111559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6386 + ... + 12041.

It is an arithmetic number, because the mean of its divisors is an integer number (4385864).

Almost surely, 2^52111556 is an apocalyptic number.

It is an amenable number.

52111556 is an abundant number, since it is smaller than the sum of its proper divisors (53149180).

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

52111556 is a wasteful number, since it uses less digits than its factorization.

52111556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18539 (or 18537 counting only the distinct ones).

The product of its digits is 1500, while the sum is 26.

The square root of 52111556 is about 7218.8334237604. The cubic root of 52111556 is about 373.5178378687.

The spelling of 52111556 in words is "fifty-two million, one hundred eleven thousand, five hundred fifty-six".