47681553 has 8 divisors (see below), whose sum is σ = 66339648. Its totient is φ = 30405584.

The previous prime is 47681551. The next prime is 47681561. The reversal of 47681553 is 35518674.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47681553 - 2¹ = 47681551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47681551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345450 + ... + 345587.

It is an arithmetic number, because the mean of its divisors is an integer number (8292456).

Almost surely, 2^47681553 is an apocalyptic number.

It is an amenable number.

47681553 is a deficient number, since it is larger than the sum of its proper divisors (18658095).

47681553 is a wasteful number, since it uses less digits than its factorization.

47681553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691063.

The product of its digits is 100800, while the sum is 39.

The square root of 47681553 is about 6905.1830533303. The cubic root of 47681553 is about 362.6186449528.

The spelling of 47681553 in words is "forty-seven million, six hundred eighty-one thousand, five hundred fifty-three".