5051200661 has 4 divisors (see below), whose sum is σ = 5439754572. Its totient is φ = 4662646752.

The previous prime is 5051200639. The next prime is 5051200691. The reversal of 5051200661 is 1660021505.

5051200661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1660021505 = 5 ⋅332004301.

It can be written as a sum of positive squares in 2 ways, for example, as 2934280561 + 2116920100 = 54169^2 + 46010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5051200661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5051200661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5051200621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194276936 + ... + 194276961.

It is an arithmetic number, because the mean of its divisors is an integer number (1359938643).

Almost surely, 2^5051200661 is an apocalyptic number.

It is an amenable number.

5051200661 is a deficient number, since it is larger than the sum of its proper divisors (388553911).

5051200661 is a wasteful number, since it uses less digits than its factorization.

5051200661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388553910.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 5051200661 is about 71071.7993370085. The cubic root of 5051200661 is about 1715.7929293237.

The spelling of 5051200661 in words is "five billion, fifty-one million, two hundred thousand, six hundred sixty-one".