29628225 has 36 divisors (see below), whose sum is σ = 57896592. Its totient is φ = 14364000.

The previous prime is 29628217. The next prime is 29628241. The reversal of 29628225 is 52282692.

29628225 is a `hidden beast` number, since 2 + 9 + 628 + 2 + 25 = 666.

It is not a de Polignac number, because 29628225 - 2³ = 29628217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29628225.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3511 + ... + 8460.

Almost surely, 2^29628225 is an apocalyptic number.

29628225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29628225 is a deficient number, since it is larger than the sum of its proper divisors (28268367).

29628225 is a wasteful number, since it uses less digits than its factorization.

29628225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11998 (or 11990 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 29628225 is about 5443.1815145189. The cubic root of 29628225 is about 309.4343657120.

The spelling of 29628225 in words is "twenty-nine million, six hundred twenty-eight thousand, two hundred twenty-five".