47255509 has 8 divisors (see below), whose sum is σ = 54690560. Its totient is φ = 39991536.

The previous prime is 47255503. The next prime is 47255513. The reversal of 47255509 is 90555274.

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

It is a cyclic number.

It is not a de Polignac number, because 47255509 - 2⁷ = 47255381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47255503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42174 + ... + 43279.

It is an arithmetic number, because the mean of its divisors is an integer number (6836320).

Almost surely, 2^47255509 is an apocalyptic number.

It is an amenable number.

47255509 is a deficient number, since it is larger than the sum of its proper divisors (7435051).

47255509 is an equidigital number, since it uses as much as digits as its factorization.

47255509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85539.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 47255509 is about 6874.2642515399. The cubic root of 47255509 is about 361.5353893170.

The spelling of 47255509 in words is "forty-seven million, two hundred fifty-five thousand, five hundred nine".