5515432273261 has 16 divisors (see below), whose sum is σ = 5891188733440. Its totient is φ = 5148367361280.

The previous prime is 5515432273259. The next prime is 5515432273277. The reversal of 5515432273261 is 1623722345155.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5515432273261 - 2¹ = 5515432273259 is a prime.

It is a super-3 number, since 3×5515432273261³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5515432273361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631800 + ... + 3380833.

It is an arithmetic number, because the mean of its divisors is an integer number (368199295840).

Almost surely, 2^{5515432273261} is an apocalyptic number.

It is an amenable number.

5515432273261 is a deficient number, since it is larger than the sum of its proper divisors (375756460179).

5515432273261 is a wasteful number, since it uses less digits than its factorization.

5515432273261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4013716.

The product of its digits is 1512000, while the sum is 46.

The spelling of 5515432273261 in words is "five trillion, five hundred fifteen billion, four hundred thirty-two million, two hundred seventy-three thousand, two hundred sixty-one".