29920253 has 8 divisors (see below), whose sum is σ = 32930496. Its totient is φ = 26958400.

The previous prime is 29920213. The next prime is 29920259. The reversal of 29920253 is 35202992.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29920253 - 2⁸ = 29919997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29920259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10793 + ... + 13278.

It is an arithmetic number, because the mean of its divisors is an integer number (4116312).

Almost surely, 2^29920253 is an apocalyptic number.

It is an amenable number.

29920253 is a deficient number, since it is larger than the sum of its proper divisors (3010243).

29920253 is a wasteful number, since it uses less digits than its factorization.

29920253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24195.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 29920253 is about 5469.9408589125. The cubic root of 29920253 is about 310.4476813077.

The spelling of 29920253 in words is "twenty-nine million, nine hundred twenty thousand, two hundred fifty-three".