47271555 has 24 divisors (see below), whose sum is σ = 85501728. Its totient is φ = 24114816.

The previous prime is 47271551. The next prime is 47271569. The reversal of 47271555 is 55517274.

It is not a de Polignac number, because 47271555 - 2² = 47271551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47271551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21802 + ... + 23871.

It is an arithmetic number, because the mean of its divisors is an integer number (3562572).

Almost surely, 2^47271555 is an apocalyptic number.

47271555 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

47271555 is a deficient number, since it is larger than the sum of its proper divisors (38230173).

47271555 is a wasteful number, since it uses less digits than its factorization.

47271555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45707 (or 45704 counting only the distinct ones).

The product of its digits is 49000, while the sum is 36.

The square root of 47271555 is about 6875.4312592011. The cubic root of 47271555 is about 361.5763054662.

It can be divided in two parts, 472 and 71555, that added together give a palindrome (72027).

The spelling of 47271555 in words is "forty-seven million, two hundred seventy-one thousand, five hundred fifty-five".