52402144 has 24 divisors (see below), whose sum is σ = 103481280. Its totient is φ = 26121216.

The previous prime is 52402139. The next prime is 52402157. The reversal of 52402144 is 44120425.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8977 + ... + 13615.

It is an arithmetic number, because the mean of its divisors is an integer number (4311720).

Almost surely, 2^52402144 is an apocalyptic number.

It is an amenable number.

52402144 is a deficient number, since it is larger than the sum of its proper divisors (51079136).

52402144 is a wasteful number, since it uses less digits than its factorization.

52402144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5002 (or 4994 counting only the distinct ones).

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

The square root of 52402144 is about 7238.9325179891. The cubic root of 52402144 is about 374.2108298745.

Adding to 52402144 its reverse (44120425), we get a palindrome (96522569).

The spelling of 52402144 in words is "fifty-two million, four hundred two thousand, one hundred forty-four".