29305285 has 4 divisors (see below), whose sum is σ = 35166348. Its totient is φ = 23444224.

The previous prime is 29305273. The next prime is 29305291. The reversal of 29305285 is 58250392.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4124961 + 25180324 = 2031^2 + 5018^2 .

It is a cyclic number.

It is not a de Polignac number, because 29305285 - 2¹⁷ = 29174213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29305285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2930524 + ... + 2930533.

It is an arithmetic number, because the mean of its divisors is an integer number (8791587).

Almost surely, 2^29305285 is an apocalyptic number.

It is an amenable number.

29305285 is a deficient number, since it is larger than the sum of its proper divisors (5861063).

29305285 is an equidigital number, since it uses as much as digits as its factorization.

29305285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5861062.

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

The square root of 29305285 is about 5413.4356004297. The cubic root of 29305285 is about 308.3060045578.

The spelling of 29305285 in words is "twenty-nine million, three hundred five thousand, two hundred eighty-five".