47505554 has 4 divisors (see below), whose sum is σ = 71258334. Its totient is φ = 23752776.

The previous prime is 47505551. The next prime is 47505569. The reversal of 47505554 is 45550574.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 32890225 + 14615329 = 5735^2 + 3823^2 .

It is not an unprimeable number, because it can be changed into a prime (47505551) 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 as a sum of consecutive naturals, namely, 11876387 + ... + 11876390.

Almost surely, 2^47505554 is an apocalyptic number.

47505554 is a deficient number, since it is larger than the sum of its proper divisors (23752780).

47505554 is a wasteful number, since it uses less digits than its factorization.

47505554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23752779.

The product of its (nonzero) digits is 70000, while the sum is 35.

The square root of 47505554 is about 6892.4272937768. The cubic root of 47505554 is about 362.1719368819.

The spelling of 47505554 in words is "forty-seven million, five hundred five thousand, five hundred fifty-four".