52121441 has 2 divisors, whose sum is σ = 52121442. Its totient is φ = 52121440.

The previous prime is 52121437. The next prime is 52121467. The reversal of 52121441 is 14412125.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43507216 + 8614225 = 6596^2 + 2935^2 .

It is a cyclic number.

It is not a de Polignac number, because 52121441 - 2² = 52121437 is a prime.

It is a super-2 number, since 2×52121441² = 5433289223832962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52121411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26060720 + 26060721.

It is an arithmetic number, because the mean of its divisors is an integer number (26060721).

Almost surely, 2^52121441 is an apocalyptic number.

It is an amenable number.

52121441 is a deficient number, since it is larger than the sum of its proper divisors (1).

52121441 is an equidigital number, since it uses as much as digits as its factorization.

52121441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 320, while the sum is 20.

The square root of 52121441 is about 7219.5180587072. The cubic root of 52121441 is about 373.5414538103.

Adding to 52121441 its reverse (14412125), we get a palindrome (66533566).

The spelling of 52121441 in words is "fifty-two million, one hundred twenty-one thousand, four hundred forty-one".