5535500781 has 16 divisors (see below), whose sum is σ = 8154601344. Its totient is φ = 3322243584.

The previous prime is 5535500779. The next prime is 5535500807. The reversal of 5535500781 is 1870055355.

It is not a de Polignac number, because 5535500781 - 2¹ = 5535500779 is a prime.

It is a super-2 number, since 2×5535500781² = 61283537792903219922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5535500281) 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 15 ways as a sum of consecutive naturals, for example, 2358376 + ... + 2360721.

It is an arithmetic number, because the mean of its divisors is an integer number (509662584).

Almost surely, 2^5535500781 is an apocalyptic number.

5535500781 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5535500781 is a deficient number, since it is larger than the sum of its proper divisors (2619100563).

5535500781 is a wasteful number, since it uses less digits than its factorization.

5535500781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4719140.

The product of its (nonzero) digits is 105000, while the sum is 39.

The square root of 5535500781 is about 74400.9461028554. The cubic root of 5535500781 is about 1768.9639079764.

The spelling of 5535500781 in words is "five billion, five hundred thirty-five million, five hundred thousand, seven hundred eighty-one".