45505565 has 12 divisors (see below), whose sum is σ = 63522396. Its totient is φ = 31203648.

The previous prime is 45505561. The next prime is 45505571. The reversal of 45505565 is 56550554.

It can be written as a sum of positive squares in 2 ways, for example, as 7300804 + 38204761 = 2702^2 + 6181^2 .

It is not a de Polignac number, because 45505565 - 2² = 45505561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45505561) 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, 92624 + ... + 93113.

It is an arithmetic number, because the mean of its divisors is an integer number (5293533).

Almost surely, 2^45505565 is an apocalyptic number.

It is an amenable number.

45505565 is a deficient number, since it is larger than the sum of its proper divisors (18016831).

45505565 is a wasteful number, since it uses less digits than its factorization.

45505565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185756 (or 185749 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 35.

The square root of 45505565 is about 6745.7812742484. The cubic root of 45505565 is about 357.0164031935.

The spelling of 45505565 in words is "forty-five million, five hundred five thousand, five hundred sixty-five".