47225645 has 8 divisors (see below), whose sum is σ = 58053240. Its totient is φ = 36858880.

The previous prime is 47225641. The next prime is 47225657. The reversal of 47225645 is 54652274.

47225645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 958441 + 46267204 = 979^2 + 6802^2 .

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

It is not a de Polignac number, because 47225645 - 2² = 47225641 is a prime.

It is a super-3 number, since 3×47225645³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47225641) 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 7 ways as a sum of consecutive naturals, for example, 114980 + ... + 115389.

It is an arithmetic number, because the mean of its divisors is an integer number (7256655).

Almost surely, 2^47225645 is an apocalyptic number.

It is an amenable number.

47225645 is a deficient number, since it is larger than the sum of its proper divisors (10827595).

47225645 is a wasteful number, since it uses less digits than its factorization.

47225645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230415.

The product of its digits is 67200, while the sum is 35.

The square root of 47225645 is about 6872.0917485144. The cubic root of 47225645 is about 361.4592135912.

It can be divided in two parts, 47 and 225645, that multiplied together give a triangular number (10605315 = T₄₆₀₅).

The spelling of 47225645 in words is "forty-seven million, two hundred twenty-five thousand, six hundred forty-five".