45508311 has 12 divisors (see below), whose sum is σ = 68169192. Its totient is φ = 30338712.

The previous prime is 45508297. The next prime is 45508313. The reversal of 45508311 is 11380554.

It is a de Polignac number, because none of the positive numbers 2^k-45508311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45508313) 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, 93396 + ... + 93881.

It is an arithmetic number, because the mean of its divisors is an integer number (5680766).

Almost surely, 2^45508311 is an apocalyptic number.

45508311 is a deficient number, since it is larger than the sum of its proper divisors (22660881).

45508311 is an equidigital number, since it uses as much as digits as its factorization.

45508311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187292 (or 187280 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 45508311 is about 6745.9848057937. The cubic root of 45508311 is about 357.0235843469.

Adding to 45508311 its reverse (11380554), we get a palindrome (56888865).

The spelling of 45508311 in words is "forty-five million, five hundred eight thousand, three hundred eleven".