47507445 has 32 divisors (see below), whose sum is σ = 86749440. Its totient is φ = 24649920.

The previous prime is 47507441. The next prime is 47507483. The reversal of 47507445 is 54470574.

It is not a de Polignac number, because 47507445 - 2² = 47507441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47507441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 240 + ... + 9750.

It is an arithmetic number, because the mean of its divisors is an integer number (2710920).

Almost surely, 2^47507445 is an apocalyptic number.

47507445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47507445 is a deficient number, since it is larger than the sum of its proper divisors (39241995).

47507445 is a wasteful number, since it uses less digits than its factorization.

47507445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9562 (or 9556 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 47507445 is about 6892.5644719509. The cubic root of 47507445 is about 362.1767423414.

The spelling of 47507445 in words is "forty-seven million, five hundred seven thousand, four hundred forty-five".