45015321252 has 96 divisors (see below), whose sum is σ = 116863617024. Its totient is φ = 13370198400.

The previous prime is 45015321223. The next prime is 45015321257. The reversal of 45015321252 is 25212351054.

It is not an unprimeable number, because it can be changed into a prime (45015321257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8609463 + ... + 8614689.

It is an arithmetic number, because the mean of its divisors is an integer number (1217329344).

Almost surely, 2^45015321252 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 45015321252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58431808512).

45015321252 is an abundant number, since it is smaller than the sum of its proper divisors (71848295772).

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

45015321252 is a wasteful number, since it uses less digits than its factorization.

45015321252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6529 (or 6527 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 45015321252 in words is "forty-five billion, fifteen million, three hundred twenty-one thousand, two hundred fifty-two".