47530381 has 4 divisors (see below), whose sum is σ = 50032000. Its totient is φ = 45028764.

The previous prime is 47530367. The next prime is 47530393. The reversal of 47530381 is 18303574.

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 a cyclic number.

It is not a de Polignac number, because 47530381 - 2⁵ = 47530349 is a prime.

It is a super-2 number, since 2×47530381² = 4518274236010322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47530321) 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, 1250781 + ... + 1250818.

It is an arithmetic number, because the mean of its divisors is an integer number (12508000).

Almost surely, 2^47530381 is an apocalyptic number.

It is an amenable number.

47530381 is a deficient number, since it is larger than the sum of its proper divisors (2501619).

47530381 is a wasteful number, since it uses less digits than its factorization.

47530381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501618.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 47530381 is about 6894.2280931225. The cubic root of 47530381 is about 362.2350177640.

The spelling of 47530381 in words is "forty-seven million, five hundred thirty thousand, three hundred eighty-one".