52042144 has 48 divisors (see below), whose sum is σ = 127745856. Its totient is φ = 20275200.

The previous prime is 52042139. The next prime is 52042157. The reversal of 52042144 is 44124025.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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, 8097 + ... + 13024.

It is an arithmetic number, because the mean of its divisors is an integer number (2661372).

Almost surely, 2^52042144 is an apocalyptic number.

It is an amenable number.

52042144 is an abundant number, since it is smaller than the sum of its proper divisors (75703712).

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

52042144 is a wasteful number, since it uses less digits than its factorization.

52042144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21149 (or 21141 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 52042144 is about 7214.0241197268. The cubic root of 52042144 is about 373.3519236774.

Adding to 52042144 its reverse (44124025), we get a palindrome (96166169).

The spelling of 52042144 in words is "fifty-two million, forty-two thousand, one hundred forty-four".