47495519551 has 4 divisors (see below), whose sum is σ = 47515320000. Its totient is φ = 47475719104.

The previous prime is 47495519537. The next prime is 47495519579. The reversal of 47495519551 is 15591559474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15591559474 = 2 ⋅7795779737.

It is a cyclic number.

It is not a de Polignac number, because 47495519551 - 2¹⁵ = 47495486783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47495519492 and 47495519501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47495519521) 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, 9896626 + ... + 9901423.

It is an arithmetic number, because the mean of its divisors is an integer number (11878830000).

Almost surely, 2^47495519551 is an apocalyptic number.

47495519551 is a deficient number, since it is larger than the sum of its proper divisors (19800449).

47495519551 is a wasteful number, since it uses less digits than its factorization.

47495519551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19800448.

The product of its digits is 5670000, while the sum is 55.

The spelling of 47495519551 in words is "forty-seven billion, four hundred ninety-five million, five hundred nineteen thousand, five hundred fifty-one".