45778757 has 4 divisors (see below), whose sum is σ = 45793356. Its totient is φ = 45764160.

The previous prime is 45778729. The next prime is 45778781. The reversal of 45778757 is 75787754.

It is a happy number.

45778757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 6766²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15319396 + 30459361 = 3914^2 + 5519^2 .

It is a cyclic number.

It is not a de Polignac number, because 45778757 - 2¹⁰ = 45777733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45778787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458 + ... + 9579.

It is an arithmetic number, because the mean of its divisors is an integer number (11448339).

Almost surely, 2^45778757 is an apocalyptic number.

It is an amenable number.

45778757 is a deficient number, since it is larger than the sum of its proper divisors (14599).

45778757 is a wasteful number, since it uses less digits than its factorization.

45778757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14598.

The product of its digits is 1920800, while the sum is 50.

The square root of 45778757 is about 6766.0000738989. Note that the first 4 decimals coincide. The cubic root of 45778757 is about 357.7294258186.

The spelling of 45778757 in words is "forty-five million, seven hundred seventy-eight thousand, seven hundred fifty-seven".