29452561 has 2 divisors, whose sum is σ = 29452562. Its totient is φ = 29452560.

The previous prime is 29452559. The next prime is 29452589. The reversal of 29452561 is 16525492.

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., 19492225 + 9960336 = 4415^2 + 3156^2 .

It is a cyclic number.

It is not a de Polignac number, because 29452561 - 2¹ = 29452559 is a prime.

Together with 29452559, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (29452961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14726280 + 14726281.

It is an arithmetic number, because the mean of its divisors is an integer number (14726281).

Almost surely, 2^29452561 is an apocalyptic number.

It is an amenable number.

29452561 is a deficient number, since it is larger than the sum of its proper divisors (1).

29452561 is an equidigital number, since it uses as much as digits as its factorization.

29452561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 34.

The square root of 29452561 is about 5427.0213745663. The cubic root of 29452561 is about 308.8216137486.

The spelling of 29452561 in words is "twenty-nine million, four hundred fifty-two thousand, five hundred sixty-one".