47447253 has 24 divisors (see below), whose sum is σ = 78743808. Its totient is φ = 26968032.

The previous prime is 47447249. The next prime is 47447261. The reversal of 47447253 is 35274474.

It is not a de Polignac number, because 47447253 - 2² = 47447249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47447263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10500 + ... + 14322.

It is an arithmetic number, because the mean of its divisors is an integer number (3280992).

Almost surely, 2^47447253 is an apocalyptic number.

It is an amenable number.

47447253 is a deficient number, since it is larger than the sum of its proper divisors (31296555).

47447253 is a wasteful number, since it uses less digits than its factorization.

47447253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033 (or 4030 counting only the distinct ones).

The product of its digits is 94080, while the sum is 36.

The square root of 47447253 is about 6888.1966435345. The cubic root of 47447253 is about 362.0237182144.

The spelling of 47447253 in words is "forty-seven million, four hundred forty-seven thousand, two hundred fifty-three".