5521856965 has 4 divisors (see below), whose sum is σ = 6626228364. Its totient is φ = 4417485568.

The previous prime is 5521856959. The next prime is 5521856987. The reversal of 5521856965 is 5696581255.

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 2288569921 + 3233287044 = 47839^2 + 56862^2 .

It is a cyclic number.

It is not a de Polignac number, because 5521856965 - 2¹⁵ = 5521824197 is a prime.

It is a super-2 number, since 2×5521856965² = 60981808683838022450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552185692 + ... + 552185701.

It is an arithmetic number, because the mean of its divisors is an integer number (1656557091).

Almost surely, 2^5521856965 is an apocalyptic number.

It is an amenable number.

5521856965 is a deficient number, since it is larger than the sum of its proper divisors (1104371399).

5521856965 is a wasteful number, since it uses less digits than its factorization.

5521856965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104371398.

The product of its digits is 3240000, while the sum is 52.

The square root of 5521856965 is about 74309.1983875482. The cubic root of 5521856965 is about 1767.5093407049.

The spelling of 5521856965 in words is "five billion, five hundred twenty-one million, eight hundred fifty-six thousand, nine hundred sixty-five".