45555450523420 has 24 divisors (see below), whose sum is σ = 97891247173104. Its totient is φ = 17798408576256.

The previous prime is 45555450523417. The next prime is 45555450523559. The reversal of 45555450523420 is 2432505455554.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26485726189 + ... + 26485727908.

It is an arithmetic number, because the mean of its divisors is an integer number (4078801965546).

Almost surely, 2^{45555450523420} is an apocalyptic number.

It is an amenable number.

45555450523420 is an abundant number, since it is smaller than the sum of its proper divisors (52335796649684).

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

45555450523420 is a wasteful number, since it uses less digits than its factorization.

45555450523420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52971454149 (or 52971454147 counting only the distinct ones).

The product of its (nonzero) digits is 12000000, while the sum is 49.

Adding to 45555450523420 its reverse (2432505455554), we get a palindrome (47987955978974).

The spelling of 45555450523420 in words is "forty-five trillion, five hundred fifty-five billion, four hundred fifty million, five hundred twenty-three thousand, four hundred twenty".