29772225 has 48 divisors (see below), whose sum is σ = 62515840. Its totient is φ = 13608000.

The previous prime is 29772203. The next prime is 29772251. The reversal of 29772225 is 52227792.

It is not a de Polignac number, because 29772225 - 2⁸ = 29771969 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 29772225.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1575 + ... + 7875.

Almost surely, 2^29772225 is an apocalyptic number.

29772225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29772225 is an abundant number, since it is smaller than the sum of its proper divisors (32743615).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29772225 is a wasteful number, since it uses less digits than its factorization.

29772225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6327 (or 6316 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 29772225 is about 5456.3930393622. The cubic root of 29772225 is about 309.9348631789.

The spelling of 29772225 in words is "twenty-nine million, seven hundred seventy-two thousand, two hundred twenty-five".