52206144 has 56 divisors (see below), whose sum is σ = 139281408. Its totient is φ = 17256960.

The previous prime is 52206137. The next prime is 52206151. The reversal of 52206144 is 44160225.

It is an interprime number because it is at equal distance from previous prime (52206137) and next prime (52206151).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23314 + ... + 25454.

It is an arithmetic number, because the mean of its divisors is an integer number (2487168).

Almost surely, 2^52206144 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 52206144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69640704).

52206144 is an abundant number, since it is smaller than the sum of its proper divisors (87075264).

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

52206144 is a wasteful number, since it uses less digits than its factorization.

52206144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2283 (or 2273 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 52206144 is about 7225.3819276215. The cubic root of 52206144 is about 373.7436927680.

Adding to 52206144 its reverse (44160225), we get a palindrome (96366369).

The spelling of 52206144 in words is "fifty-two million, two hundred six thousand, one hundred forty-four".