447752925 has 36 divisors (see below), whose sum is σ = 809377140. Its totient is φ = 236597760.

The previous prime is 447752869. The next prime is 447752939. The reversal of 447752925 is 529257744.

It can be written as a sum of positive squares in 6 ways, for example, as 8892324 + 438860601 = 2982^2 + 20949^2 .

It is not a de Polignac number, because 447752925 - 2⁷ = 447752797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 15397 + ... + 33653.

Almost surely, 2^447752925 is an apocalyptic number.

447752925 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

447752925 is a deficient number, since it is larger than the sum of its proper divisors (361624215).

447752925 is a wasteful number, since it uses less digits than its factorization.

447752925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18382 (or 18374 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 447752925 is about 21160.1730853034. The cubic root of 447752925 is about 765.0317813274.

The spelling of 447752925 in words is "four hundred forty-seven million, seven hundred fifty-two thousand, nine hundred twenty-five".