47997554 has 12 divisors (see below), whose sum is σ = 79136862. Its totient is φ = 21816960.

The previous prime is 47997529. The next prime is 47997557. The reversal of 47997554 is 45579974.

47997554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 40005625 + 7991929 = 6325^2 + 2827^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47997557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 98927 + ... + 99410.

Almost surely, 2^47997554 is an apocalyptic number.

47997554 is a deficient number, since it is larger than the sum of its proper divisors (31139308).

47997554 is a wasteful number, since it uses less digits than its factorization.

47997554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198361 (or 198350 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 50.

The square root of 47997554 is about 6928.0267031818. The cubic root of 47997554 is about 363.4179452991.

The spelling of 47997554 in words is "forty-seven million, nine hundred ninety-seven thousand, five hundred fifty-four".