245554053502520 has 64 divisors (see below), whose sum is σ = 631881932817600. Its totient is φ = 84128998026240.

The previous prime is 245554053502489. The next prime is 245554053502523. The reversal of 245554053502520 is 25205350455542.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245554053502523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317129165 + ... + 317902524.

It is an arithmetic number, because the mean of its divisors is an integer number (9873155200275).

Almost surely, 2^{245554053502520} is an apocalyptic number.

245554053502520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245554053502520 is an abundant number, since it is smaller than the sum of its proper divisors (386327879315080).

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

245554053502520 is a wasteful number, since it uses less digits than its factorization.

245554053502520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635033088 (or 635033084 counting only the distinct ones).

The product of its (nonzero) digits is 6000000, while the sum is 47.

The spelling of 245554053502520 in words is "two hundred forty-five trillion, five hundred fifty-four billion, fifty-three million, five hundred two thousand, five hundred twenty".