45509811 has 8 divisors (see below), whose sum is σ = 60711120. Its totient is φ = 30324192.

The previous prime is 45509803. The next prime is 45509869. The reversal of 45509811 is 11890554.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45509811 - 2³ = 45509803 is a prime.

It is a super-2 number, since 2×45509811² = 4142285794511442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45509411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8221 + ... + 12593.

It is an arithmetic number, because the mean of its divisors is an integer number (7588890).

Almost surely, 2^45509811 is an apocalyptic number.

45509811 is a deficient number, since it is larger than the sum of its proper divisors (15201309).

45509811 is a wasteful number, since it uses less digits than its factorization.

45509811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7845.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 45509811 is about 6746.0959821218. The cubic root of 45509811 is about 357.0275069234.

The spelling of 45509811 in words is "forty-five million, five hundred nine thousand, eight hundred eleven".