47445225 has 24 divisors (see below), whose sum is σ = 78944352. Its totient is φ = 25142400.

The previous prime is 47445217. The next prime is 47445239. The reversal of 47445225 is 52254474.

It is not a de Polignac number, because 47445225 - 2³ = 47445217 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10285 + ... + 14165.

It is an arithmetic number, because the mean of its divisors is an integer number (3289348).

Almost surely, 2^47445225 is an apocalyptic number.

It is an amenable number.

47445225 is a deficient number, since it is larger than the sum of its proper divisors (31499127).

47445225 is a wasteful number, since it uses less digits than its factorization.

47445225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4057 (or 4052 counting only the distinct ones).

The product of its digits is 44800, while the sum is 33.

The square root of 47445225 is about 6888.0494336205. The cubic root of 47445225 is about 362.0185602441.

Adding to 47445225 its reverse (52254474), we get a palindrome (99699699).

Subtracting 47445225 from its reverse (52254474), we obtain a square (4809249 = 2193²).

The spelling of 47445225 in words is "forty-seven million, four hundred forty-five thousand, two hundred twenty-five".