9957475571 has 4 divisors (see below), whose sum is σ = 9959559600. Its totient is φ = 9955391544.

The previous prime is 9957475547. The next prime is 9957475609. The reversal of 9957475571 is 1755747599.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1755747599 = 449 ⋅3910351.

It is a cyclic number.

It is not a de Polignac number, because 9957475571 - 2¹⁰ = 9957474547 is a prime.

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 9957475571.

It is not an unprimeable number, because it can be changed into a prime (9957475271) 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, 1034831 + ... + 1044408.

It is an arithmetic number, because the mean of its divisors is an integer number (2489889900).

Almost surely, 2^9957475571 is an apocalyptic number.

9957475571 is a deficient number, since it is larger than the sum of its proper divisors (2084029).

9957475571 is a wasteful number, since it uses less digits than its factorization.

9957475571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084028.

The product of its digits is 13891500, while the sum is 59.

The square root of 9957475571 is about 99787.1513322231. The cubic root of 9957475571 is about 2151.3764808063.

The spelling of 9957475571 in words is "nine billion, nine hundred fifty-seven million, four hundred seventy-five thousand, five hundred seventy-one".