520505525274140 has 48 divisors (see below), whose sum is σ = 1249214617147392. Its totient is φ = 178458843452736.

The previous prime is 520505525274101. The next prime is 520505525274143. The reversal of 520505525274140 is 41472525505025.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520505525274143) 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, 197669429 + ... + 200285331.

It is an arithmetic number, because the mean of its divisors is an integer number (26025304523904).

Almost surely, 2^{520505525274140} is an apocalyptic number.

It is an amenable number.

520505525274140 is an abundant number, since it is smaller than the sum of its proper divisors (728709091873252).

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

520505525274140 is a wasteful number, since it uses less digits than its factorization.

520505525274140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037186 (or 4037184 counting only the distinct ones).

The product of its (nonzero) digits is 2800000, while the sum is 47.

The spelling of 520505525274140 in words is "five hundred twenty trillion, five hundred five billion, five hundred twenty-five million, two hundred seventy-four thousand, one hundred forty".