5521554065 has 4 divisors (see below), whose sum is σ = 6625864884. Its totient is φ = 4417243248.

The previous prime is 5521553971. The next prime is 5521554079. The reversal of 5521554065 is 5604551255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5604551255 = 5 ⋅1120910251.

It can be written as a sum of positive squares in 2 ways, for example, as 2334725761 + 3186828304 = 48319^2 + 56452^2 .

It is a cyclic number.

It is not a de Polignac number, because 5521554065 - 2³² = 1226586769 is a prime.

It is a Duffinian 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, 552155402 + ... + 552155411.

It is an arithmetic number, because the mean of its divisors is an integer number (1656466221).

Almost surely, 2^5521554065 is an apocalyptic number.

It is an amenable number.

5521554065 is a deficient number, since it is larger than the sum of its proper divisors (1104310819).

5521554065 is a wasteful number, since it uses less digits than its factorization.

5521554065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104310818.

The product of its (nonzero) digits is 150000, while the sum is 38.

The square root of 5521554065 is about 74307.1602539082. The cubic root of 5521554065 is about 1767.4770213618.

The spelling of 5521554065 in words is "five billion, five hundred twenty-one million, five hundred fifty-four thousand, sixty-five".