47345553 has 20 divisors (see below), whose sum is σ = 71932080. Its totient is φ = 31025592.

The previous prime is 47345539. The next prime is 47345593. The reversal of 47345553 is 35554374.

It is not a de Polignac number, because 47345553 - 2⁸ = 47345297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47345593) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 175 + ... + 9732.

It is an arithmetic number, because the mean of its divisors is an integer number (3596604).

Almost surely, 2^47345553 is an apocalyptic number.

It is an amenable number.

47345553 is a deficient number, since it is larger than the sum of its proper divisors (24586527).

47345553 is an equidigital number, since it uses as much as digits as its factorization.

47345553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9978 (or 9969 counting only the distinct ones).

The product of its digits is 126000, while the sum is 36.

The square root of 47345553 is about 6880.8104900513. The cubic root of 47345553 is about 361.7648753472.

The spelling of 47345553 in words is "forty-seven million, three hundred forty-five thousand, five hundred fifty-three".