45245541520 has 20 divisors (see below), whose sum is σ = 105195884220. Its totient is φ = 18098216576.

The previous prime is 45245541421. The next prime is 45245541533. The reversal of 45245541520 is 2514554254.

It can be written as a sum of positive squares in 2 ways, for example, as 14856684544 + 30388856976 = 121888^2 + 174324^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 45245541520.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282784555 + ... + 282784714.

It is an arithmetic number, because the mean of its divisors is an integer number (5259794211).

Almost surely, 2^45245541520 is an apocalyptic number.

45245541520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45245541520 is an abundant number, since it is smaller than the sum of its proper divisors (59950342700).

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

45245541520 is a wasteful number, since it uses less digits than its factorization.

45245541520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565569282 (or 565569276 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 37.

The spelling of 45245541520 in words is "forty-five billion, two hundred forty-five million, five hundred forty-one thousand, five hundred twenty".