7551783801 has 27 divisors (see below), whose sum is σ = 11072865999. Its totient is φ = 4959613872.

The previous prime is 7551783791. The next prime is 7551783803. The reversal of 7551783801 is 1083871557.

The square root of 7551783801 is 86901.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5542951401 + 2008832400 = 74451^2 + 44820^2 .

It is not a de Polignac number, because 7551783801 - 2²⁷ = 7417566073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7551783803) 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 26 ways as a sum of consecutive naturals, for example, 21638175 + ... + 21638523.

Almost surely, 2^7551783801 is an apocalyptic number.

7551783801 is the 86901-st square number.

7551783801 is the 43451-st centered octagonal number.

It is an amenable number.

7551783801 is a deficient number, since it is larger than the sum of its proper divisors (3521082198).

7551783801 is an frugal number, since it uses more digits than its factorization.

7551783801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 45.

The cubic root of 7551783801 is about 1961.9285301925.

The spelling of 7551783801 in words is "seven billion, five hundred fifty-one million, seven hundred eighty-three thousand, eight hundred one".