47940505 has 4 divisors (see below), whose sum is σ = 57528612. Its totient is φ = 38352400.

The previous prime is 47940481. The next prime is 47940569. The reversal of 47940505 is 50504974.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9339136 + 38601369 = 3056^2 + 6213^2 .

It is not a de Polignac number, because 47940505 - 2⁹ = 47939993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4794046 + ... + 4794055.

It is an arithmetic number, because the mean of its divisors is an integer number (14382153).

Almost surely, 2^47940505 is an apocalyptic number.

It is an amenable number.

47940505 is a deficient number, since it is larger than the sum of its proper divisors (9588107).

47940505 is an equidigital number, since it uses as much as digits as its factorization.

47940505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9588106.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 47940505 is about 6923.9082171849. The cubic root of 47940505 is about 363.2739042790.

The spelling of 47940505 in words is "forty-seven million, nine hundred forty thousand, five hundred five".