47257515537 has 4 divisors (see below), whose sum is σ = 63010020720. Its totient is φ = 31505010356.

The previous prime is 47257515533. The next prime is 47257515589. The reversal of 47257515537 is 73551575274.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47257515537 - 2² = 47257515533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47257515537.

It is not an unprimeable number, because it can be changed into a prime (47257515533) 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 3 ways as a sum of consecutive naturals, for example, 7876252587 + ... + 7876252592.

It is an arithmetic number, because the mean of its divisors is an integer number (15752505180).

Almost surely, 2^47257515537 is an apocalyptic number.

It is an amenable number.

47257515537 is a deficient number, since it is larger than the sum of its proper divisors (15752505183).

47257515537 is a wasteful number, since it uses less digits than its factorization.

47257515537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15752505182.

The product of its digits is 5145000, while the sum is 51.

The spelling of 47257515537 in words is "forty-seven billion, two hundred fifty-seven million, five hundred fifteen thousand, five hundred thirty-seven".