74331225 has 36 divisors (see below), whose sum is σ = 140974236. Its totient is φ = 37309440.

The previous prime is 74331221. The next prime is 74331233. The reversal of 74331225 is 52213347.

74331225 is a `hidden beast` number, since 7 + 433 + 1 + 225 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 4173849 + 70157376 = 2043^2 + 8376^2 .

It is not a de Polignac number, because 74331225 - 2² = 74331221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74331221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5892 + ... + 13541.

It is an arithmetic number, because the mean of its divisors is an integer number (3915951).

Almost surely, 2^74331225 is an apocalyptic number.

74331225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

74331225 is a deficient number, since it is larger than the sum of its proper divisors (66643011).

74331225 is a wasteful number, since it uses less digits than its factorization.

74331225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19466 (or 19458 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 74331225 is about 8621.5558340708. Note that the first 3 decimals coincide. The cubic root of 74331225 is about 420.4591068058.

The spelling of 74331225 in words is "seventy-four million, three hundred thirty-one thousand, two hundred twenty-five".