29921053 has 2 divisors, whose sum is σ = 29921054. Its totient is φ = 29921052.

The previous prime is 29921041. The next prime is 29921057. The reversal of 29921053 is 35012992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15382084 + 14538969 = 3922^2 + 3813^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29921053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29921057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14960526 + 14960527.

It is an arithmetic number, because the mean of its divisors is an integer number (14960527).

Almost surely, 2^29921053 is an apocalyptic number.

It is an amenable number.

29921053 is a deficient number, since it is larger than the sum of its proper divisors (1).

29921053 is an equidigital number, since it uses as much as digits as its factorization.

29921053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 29921053 is about 5470.0139853569. The cubic root of 29921053 is about 310.4504481731.

The spelling of 29921053 in words is "twenty-nine million, nine hundred twenty-one thousand, fifty-three".