47221475 has 24 divisors (see below), whose sum is σ = 67400448. Its totient is φ = 32148000.

The previous prime is 47221469. The next prime is 47221477. The reversal of 47221475 is 57412274.

It is not a de Polignac number, because 47221475 - 2⁴ = 47221459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47221477) 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, 25532 + ... + 27318.

It is an arithmetic number, because the mean of its divisors is an integer number (2808352).

Almost surely, 2^47221475 is an apocalyptic number.

47221475 is a deficient number, since it is larger than the sum of its proper divisors (20178973).

47221475 is a wasteful number, since it uses less digits than its factorization.

47221475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955 (or 1950 counting only the distinct ones).

The product of its digits is 15680, while the sum is 32.

The square root of 47221475 is about 6871.7883407451. The cubic root of 47221475 is about 361.4485743909.

The spelling of 47221475 in words is "forty-seven million, two hundred twenty-one thousand, four hundred seventy-five".