5507781620775 has 96 divisors (see below), whose sum is σ = 10612635033600. Its totient is φ = 2468509411200.

The previous prime is 5507781620749. The next prime is 5507781620777. The reversal of 5507781620775 is 5770261877055.

It is a happy number.

It is not a de Polignac number, because 5507781620775 - 2¹¹ = 5507781618727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5507781620777) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6259486 + ... + 7084964.

It is an arithmetic number, because the mean of its divisors is an integer number (110548281600).

Almost surely, 2^{5507781620775} is an apocalyptic number.

5507781620775 is a deficient number, since it is larger than the sum of its proper divisors (5104853412825).

5507781620775 is a wasteful number, since it uses less digits than its factorization.

5507781620775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825749 (or 825744 counting only the distinct ones).

The product of its (nonzero) digits is 28812000, while the sum is 60.

The spelling of 5507781620775 in words is "five trillion, five hundred seven billion, seven hundred eighty-one million, six hundred twenty thousand, seven hundred seventy-five".