5521512655 has 4 divisors (see below), whose sum is σ = 6625815192. Its totient is φ = 4417210120.

The previous prime is 5521512589. The next prime is 5521512709. The reversal of 5521512655 is 5562151255.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5521512655 - 2⁷ = 5521512527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552151261 + ... + 552151270.

It is an arithmetic number, because the mean of its divisors is an integer number (1656453798).

Almost surely, 2^5521512655 is an apocalyptic number.

5521512655 is a deficient number, since it is larger than the sum of its proper divisors (1104302537).

5521512655 is a wasteful number, since it uses less digits than its factorization.

5521512655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104302536.

The product of its digits is 75000, while the sum is 37.

The square root of 5521512655 is about 74306.8816126743. The cubic root of 5521512655 is about 1767.4726028348.

The spelling of 5521512655 in words is "five billion, five hundred twenty-one million, five hundred twelve thousand, six hundred fifty-five".