5515542261 has 64 divisors (see below), whose sum is σ = 8604610560. Its totient is φ = 3488065920.

The previous prime is 5515542259. The next prime is 5515542293. The reversal of 5515542261 is 1622455155.

5515542261 is a `hidden beast` number, since 5 + 51 + 5 + 542 + 2 + 61 = 666.

It is not a de Polignac number, because 5515542261 - 2¹ = 5515542259 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515542211) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 11810350 + ... + 11810816.

It is an arithmetic number, because the mean of its divisors is an integer number (134447040).

Almost surely, 2^5515542261 is an apocalyptic number.

It is an amenable number.

5515542261 is a deficient number, since it is larger than the sum of its proper divisors (3089068299).

5515542261 is a wasteful number, since it uses less digits than its factorization.

5515542261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791 (or 785 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The square root of 5515542261 is about 74266.6968499340. The cubic root of 5515542261 is about 1766.8353189217.

The spelling of 5515542261 in words is "five billion, five hundred fifteen million, five hundred forty-two thousand, two hundred sixty-one".