52121444 has 12 divisors (see below), whose sum is σ = 92574384. Its totient is φ = 25671624.

The previous prime is 52121441. The next prime is 52121467. The reversal of 52121444 is 44412125.

It is not an unprimeable number, because it can be changed into a prime (52121441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96974 + ... + 97509.

It is an arithmetic number, because the mean of its divisors is an integer number (7714532).

Almost surely, 2^52121444 is an apocalyptic number.

It is an amenable number.

52121444 is a deficient number, since it is larger than the sum of its proper divisors (40452940).

52121444 is a wasteful number, since it uses less digits than its factorization.

52121444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194554 (or 194552 counting only the distinct ones).

The product of its digits is 1280, while the sum is 23.

The square root of 52121444 is about 7219.5182664773. The cubic root of 52121444 is about 373.5414609771.

Adding to 52121444 its reverse (44412125), we get a palindrome (96533569).

The spelling of 52121444 in words is "fifty-two million, one hundred twenty-one thousand, four hundred forty-four".