5521551651 has 64 divisors (see below), whose sum is σ = 10211558400. Its totient is φ = 2864678400.

The previous prime is 5521551593. The next prime is 5521551667. The reversal of 5521551651 is 1561551255.

5521551651 is a `hidden beast` number, since 5 + 52 + 1 + 551 + 6 + 51 = 666.

It is not a de Polignac number, because 5521551651 - 2¹⁴ = 5521535267 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (5521551671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2554011 + ... + 2556171.

It is an arithmetic number, because the mean of its divisors is an integer number (159555600).

Almost surely, 2^5521551651 is an apocalyptic number.

5521551651 is a deficient number, since it is larger than the sum of its proper divisors (4690006749).

5521551651 is a wasteful number, since it uses less digits than its factorization.

5521551651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3417 (or 3411 counting only the distinct ones).

The product of its digits is 37500, while the sum is 36.

The square root of 5521551651 is about 74307.1440105189. The cubic root of 5521551651 is about 1767.4767637840.

The spelling of 5521551651 in words is "five billion, five hundred twenty-one million, five hundred fifty-one thousand, six hundred fifty-one".