29525921 has 2 divisors, whose sum is σ = 29525922. Its totient is φ = 29525920.

The previous prime is 29525897. The next prime is 29525933. The reversal of 29525921 is 12952592.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26635921 + 2890000 = 5161^2 + 1700^2 .

It is a cyclic number.

It is not a de Polignac number, because 29525921 - 2¹⁰ = 29524897 is a prime.

It is not a weakly prime, because it can be changed into another prime (29525971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14762960 + 14762961.

It is an arithmetic number, because the mean of its divisors is an integer number (14762961).

Almost surely, 2^29525921 is an apocalyptic number.

It is an amenable number.

29525921 is a deficient number, since it is larger than the sum of its proper divisors (1).

29525921 is an equidigital number, since it uses as much as digits as its factorization.

29525921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 35.

The square root of 29525921 is about 5433.7759431173. The cubic root of 29525921 is about 309.0778039190.

The spelling of 29525921 in words is "twenty-nine million, five hundred twenty-five thousand, nine hundred twenty-one".