45512225292 has 144 divisors (see below), whose sum is σ = 114702352128. Its totient is φ = 14017449600.

The previous prime is 45512225281. The next prime is 45512225321. The reversal of 45512225292 is 29252221554.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 45512225292.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 51542283 + ... + 51543165.

It is an arithmetic number, because the mean of its divisors is an integer number (796544112).

Almost surely, 2^45512225292 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45512225292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57351176064).

45512225292 is an abundant number, since it is smaller than the sum of its proper divisors (69190126836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45512225292 is a wasteful number, since it uses less digits than its factorization.

45512225292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100 (or 1055 counting only the distinct ones).

The product of its digits is 144000, while the sum is 39.

The spelling of 45512225292 in words is "forty-five billion, five hundred twelve million, two hundred twenty-five thousand, two hundred ninety-two".