45520131220 has 48 divisors (see below), whose sum is σ = 104998400640. Its totient is φ = 16499742336.

The previous prime is 45520131179. The next prime is 45520131233. The reversal of 45520131220 is 2213102554.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2595387 + ... + 2612866.

It is an arithmetic number, because the mean of its divisors is an integer number (2187466680).

Almost surely, 2^45520131220 is an apocalyptic number.

It is an amenable number.

45520131220 is an abundant number, since it is smaller than the sum of its proper divisors (59478269420).

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

45520131220 is a wasteful number, since it uses less digits than its factorization.

45520131220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5208304 (or 5208302 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 45520131220 its reverse (2213102554), we get a palindrome (47733233774).

The spelling of 45520131220 in words is "forty-five billion, five hundred twenty million, one hundred thirty-one thousand, two hundred twenty".