45253665 has 12 divisors (see below), whose sum is σ = 78439764. Its totient is φ = 24135264.

The previous prime is 45253661. The next prime is 45253667. The reversal of 45253665 is 56635254.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8856576 + 36397089 = 2976^2 + 6033^2 .

It is not a de Polignac number, because 45253665 - 2² = 45253661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45253661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 502774 + ... + 502863.

It is an arithmetic number, because the mean of its divisors is an integer number (6536647).

Almost surely, 2^45253665 is an apocalyptic number.

45253665 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45253665 is a deficient number, since it is larger than the sum of its proper divisors (33186099).

45253665 is a wasteful number, since it uses less digits than its factorization.

45253665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005648 (or 1005645 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 45253665 is about 6727.0844353256. The cubic root of 45253665 is about 356.3564188077.

The spelling of 45253665 in words is "forty-five million, two hundred fifty-three thousand, six hundred sixty-five".