52156224 has 70 divisors (see below), whose sum is σ = 154622754. Its totient is φ = 17383680.

The previous prime is 52156211. The next prime is 52156241. The reversal of 52156224 is 42265125.

52156224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 45805824 + 6350400 = 6768^2 + 2520^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 154 + ... + 10214.

Almost surely, 2^52156224 is an apocalyptic number.

52156224 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52156224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77311377).

52156224 is an abundant number, since it is smaller than the sum of its proper divisors (102466530).

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

52156224 is a wasteful number, since it uses less digits than its factorization.

52156224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10085 (or 10066 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 52156224 is about 7221.9266127537. The cubic root of 52156224 is about 373.6245290475.

The spelling of 52156224 in words is "fifty-two million, one hundred fifty-six thousand, two hundred twenty-four".