47979550 has 24 divisors (see below), whose sum is σ = 90710712. Its totient is φ = 18876000.

The previous prime is 47979521. The next prime is 47979551. The reversal of 47979550 is 5597974.

It is a happy number.

47979550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 47979550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47979551) 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 11 ways as a sum of consecutive naturals, for example, 4816 + ... + 10915.

It is an arithmetic number, because the mean of its divisors is an integer number (3779613).

Almost surely, 2^47979550 is an apocalyptic number.

47979550 is a deficient number, since it is larger than the sum of its proper divisors (42731162).

47979550 is a wasteful number, since it uses less digits than its factorization.

47979550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15804 (or 15799 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 46.

The square root of 47979550 is about 6926.7272214228. The cubic root of 47979550 is about 363.3724999628.

The spelling of 47979550 in words is "forty-seven million, nine hundred seventy-nine thousand, five hundred fifty".