47053855729 has 4 divisors (see below), whose sum is σ = 47055810676. Its totient is φ = 47051900784.

The previous prime is 47053855679. The next prime is 47053855741. The reversal of 47053855729 is 92755835074.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5916686400 + 41137169329 = 76920^2 + 202823^2 .

It is a cyclic number.

It is not a de Polignac number, because 47053855729 - 2¹⁹ = 47053331441 is a prime.

It is a super-2 number, since 2×47053855729² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47053855729.

It is not an unprimeable number, because it can be changed into a prime (47053855769) 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, 940914 + ... + 989659.

It is an arithmetic number, because the mean of its divisors is an integer number (11763952669).

Almost surely, 2^47053855729 is an apocalyptic number.

It is an amenable number.

47053855729 is a deficient number, since it is larger than the sum of its proper divisors (1954947).

47053855729 is a wasteful number, since it uses less digits than its factorization.

47053855729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954946.

The product of its (nonzero) digits is 10584000, while the sum is 55.

The spelling of 47053855729 in words is "forty-seven billion, fifty-three million, eight hundred fifty-five thousand, seven hundred twenty-nine".