5571965 has 8 divisors (see below), whose sum is σ = 7641600. Its totient is φ = 3820752.

The previous prime is 5571961. The next prime is 5571977. The reversal of 5571965 is 5691755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5571965 - 2² = 5571961 is a prime.

It is a super-2 number, since 2×5571965² = 62093587922450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5571961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79565 + ... + 79634.

It is an arithmetic number, because the mean of its divisors is an integer number (955200).

Almost surely, 2^5571965 is an apocalyptic number.

It is an amenable number.

5571965 is a deficient number, since it is larger than the sum of its proper divisors (2069635).

5571965 is a wasteful number, since it uses less digits than its factorization.

5571965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159211.

The product of its digits is 47250, while the sum is 38.

The square root of 5571965 is about 2360.5010061426. The cubic root of 5571965 is about 177.2839664940.

It can be divided in two parts, 557196 and 5, that multiplied together give a triangular number (2785980 = T₂₃₆₀).

The spelling of 5571965 in words is "five million, five hundred seventy-one thousand, nine hundred sixty-five".