45557777 has 2 divisors, whose sum is σ = 45557778. Its totient is φ = 45557776.

The previous prime is 45557761. The next prime is 45557819. The reversal of 45557777 is 77775554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34058896 + 11498881 = 5836^2 + 3391^2 .

It is a cyclic number.

It is not a de Polignac number, because 45557777 - 2⁴ = 45557761 is a prime.

It is a super-2 number, since 2×45557777² = 4151022090363458, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (45557717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22778888 + 22778889.

It is an arithmetic number, because the mean of its divisors is an integer number (22778889).

Almost surely, 2^45557777 is an apocalyptic number.

It is an amenable number.

45557777 is a deficient number, since it is larger than the sum of its proper divisors (1).

45557777 is an equidigital number, since it uses as much as digits as its factorization.

45557777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200500, while the sum is 47.

The square root of 45557777 is about 6749.6501390813. The cubic root of 45557777 is about 357.1528950398.

The spelling of 45557777 in words is "forty-five million, five hundred fifty-seven thousand, seven hundred seventy-seven".