47551319 has 4 divisors (see below), whose sum is σ = 50054040. Its totient is φ = 45048600.

The previous prime is 47551247. The next prime is 47551321. The reversal of 47551319 is 91315574.

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

It is a cyclic number.

It is not a de Polignac number, because 47551319 - 2¹² = 47547223 is a prime.

It is a super-2 number, since 2×47551319² = 4522255877279522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47551369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1251332 + ... + 1251369.

It is an arithmetic number, because the mean of its divisors is an integer number (12513510).

Almost surely, 2^47551319 is an apocalyptic number.

47551319 is a deficient number, since it is larger than the sum of its proper divisors (2502721).

47551319 is a wasteful number, since it uses less digits than its factorization.

47551319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502720.

The product of its digits is 18900, while the sum is 35.

The square root of 47551319 is about 6895.7464425543. The cubic root of 47551319 is about 362.2882003335.

The spelling of 47551319 in words is "forty-seven million, five hundred fifty-one thousand, three hundred nineteen".