45519977 has 4 divisors (see below), whose sum is σ = 45590340. Its totient is φ = 45449616.

The previous prime is 45519973. The next prime is 45519979. The reversal of 45519977 is 77991554.

45519977 is digitally balanced in base 2, 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: 77991554 = 2 ⋅38995777.

It can be written as a sum of positive squares in 2 ways, for example, as 3904576 + 41615401 = 1976^2 + 6451^2 .

It is a cyclic number.

It is not a de Polignac number, because 45519977 - 2² = 45519973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45519973) 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, 34202 + ... + 35507.

It is an arithmetic number, because the mean of its divisors is an integer number (11397585).

Almost surely, 2^45519977 is an apocalyptic number.

It is an amenable number.

45519977 is a deficient number, since it is larger than the sum of its proper divisors (70363).

45519977 is an equidigital number, since it uses as much as digits as its factorization.

45519977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70362.

The product of its digits is 396900, while the sum is 47.

The square root of 45519977 is about 6746.8494128741. The cubic root of 45519977 is about 357.0540892605.

The spelling of 45519977 in words is "forty-five million, five hundred nineteen thousand, nine hundred seventy-seven".