45665775 has 36 divisors (see below), whose sum is σ = 84833112. Its totient is φ = 24351840.

The previous prime is 45665747. The next prime is 45665777. The reversal of 45665775 is 57756654.

It is not a de Polignac number, because 45665775 - 2¹³ = 45657583 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 45665775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45665777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2317 + ... + 9833.

Almost surely, 2^45665775 is an apocalyptic number.

45665775 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

45665775 is a deficient number, since it is larger than the sum of its proper divisors (39167337).

45665775 is an equidigital number, since it uses as much as digits as its factorization.

45665775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7542 (or 7525 counting only the distinct ones).

The product of its digits is 882000, while the sum is 45.

The square root of 45665775 is about 6757.6456699061. The cubic root of 45665775 is about 357.4348912352.

The spelling of 45665775 in words is "forty-five million, six hundred sixty-five thousand, seven hundred seventy-five".