47042481 has 4 divisors (see below), whose sum is σ = 62723312. Its totient is φ = 31361652.

The previous prime is 47042447. The next prime is 47042497. The reversal of 47042481 is 18424074.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 47042481 - 2⁷ = 47042353 is a prime.

It is a super-2 number, since 2×47042481² = 4425990037270722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47042581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7840411 + ... + 7840416.

It is an arithmetic number, because the mean of its divisors is an integer number (15680828).

Almost surely, 2^47042481 is an apocalyptic number.

It is an amenable number.

47042481 is a deficient number, since it is larger than the sum of its proper divisors (15680831).

47042481 is a wasteful number, since it uses less digits than its factorization.

47042481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15680830.

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 47042481 is about 6858.7521459811. The cubic root of 47042481 is about 360.9913033154.

The spelling of 47042481 in words is "forty-seven million, forty-two thousand, four hundred eighty-one".