52231649 has 2 divisors, whose sum is σ = 52231650. Its totient is φ = 52231648.

The previous prime is 52231631. The next prime is 52231693. The reversal of 52231649 is 94613225.

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., 49773025 + 2458624 = 7055^2 + 1568^2 .

It is a cyclic number.

It is not a de Polignac number, because 52231649 - 2⁸ = 52231393 is a prime.

It is not a weakly prime, because it can be changed into another prime (52231549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26115824 + 26115825.

It is an arithmetic number, because the mean of its divisors is an integer number (26115825).

Almost surely, 2^52231649 is an apocalyptic number.

It is an amenable number.

52231649 is a deficient number, since it is larger than the sum of its proper divisors (1).

52231649 is an equidigital number, since it uses as much as digits as its factorization.

52231649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 52231649 is about 7227.1466707131. The cubic root of 52231649 is about 373.8045462759.

The spelling of 52231649 in words is "fifty-two million, two hundred thirty-one thousand, six hundred forty-nine".