45540779 has 2 divisors, whose sum is σ = 45540780. Its totient is φ = 45540778.

The previous prime is 45540769. The next prime is 45540787. The reversal of 45540779 is 97704554.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45540779 is a prime.

It is not a weakly prime, because it can be changed into another prime (45540769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22770389 + 22770390.

It is an arithmetic number, because the mean of its divisors is an integer number (22770390).

Almost surely, 2^45540779 is an apocalyptic number.

45540779 is a deficient number, since it is larger than the sum of its proper divisors (1).

45540779 is an equidigital number, since it uses as much as digits as its factorization.

45540779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 45540779 is about 6748.3908452312. The cubic root of 45540779 is about 357.1084705712.

The spelling of 45540779 in words is "forty-five million, five hundred forty thousand, seven hundred seventy-nine".