29903225 has 12 divisors (see below), whose sum is σ = 40451280. Its totient is φ = 21747600.

The previous prime is 29903213. The next prime is 29903249. The reversal of 29903225 is 52230992.

It is a happy number.

It is not a de Polignac number, because 29903225 - 2⁶ = 29903161 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 29903191 and 29903200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54095 + ... + 54644.

It is an arithmetic number, because the mean of its divisors is an integer number (3370940).

Almost surely, 2^29903225 is an apocalyptic number.

29903225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29903225 is a deficient number, since it is larger than the sum of its proper divisors (10548055).

29903225 is a wasteful number, since it uses less digits than its factorization.

29903225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108760 (or 108755 counting only the distinct ones).

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

The square root of 29903225 is about 5468.3841306185. The cubic root of 29903225 is about 310.3887768786.

The spelling of 29903225 in words is "twenty-nine million, nine hundred three thousand, two hundred twenty-five".