52071961 has 2 divisors, whose sum is σ = 52071962. Its totient is φ = 52071960.

The previous prime is 52071953. The next prime is 52071967. The reversal of 52071961 is 16917025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27510025 + 24561936 = 5245^2 + 4956^2 .

It is a cyclic number.

It is not a de Polignac number, because 52071961 - 2³ = 52071953 is a prime.

It is a super-2 number, since 2×52071961² = 5422978244771042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52071967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26035980 + 26035981.

It is an arithmetic number, because the mean of its divisors is an integer number (26035981).

Almost surely, 2^52071961 is an apocalyptic number.

It is an amenable number.

52071961 is a deficient number, since it is larger than the sum of its proper divisors (1).

52071961 is an equidigital number, since it uses as much as digits as its factorization.

52071961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 52071961 is about 7216.0904234911. The cubic root of 52071961 is about 373.4232127526.

Adding to 52071961 its reverse (16917025), we get a palindrome (68988986).

The spelling of 52071961 in words is "fifty-two million, seventy-one thousand, nine hundred sixty-one".