3125140424520 has 64 divisors (see below), whose sum is σ = 9375537568320. Its totient is φ = 833360442624.

The previous prime is 3125140424491. The next prime is 3125140424533. The reversal of 3125140424520 is 254240415213.

It is a super-4 number, since 4×3125140424520⁴ (a number of 51 digits) contains 4444 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 18485494 + ... + 18653786.

It is an arithmetic number, because the mean of its divisors is an integer number (146492774505).

Almost surely, 2^{3125140424520} is an apocalyptic number.

3125140424520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3125140424520 is an abundant number, since it is smaller than the sum of its proper divisors (6250397143800).

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

3125140424520 is a wasteful number, since it uses less digits than its factorization.

3125140424520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323054 (or 323050 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 3125140424520 its reverse (254240415213), we get a palindrome (3379380839733).

The spelling of 3125140424520 in words is "three trillion, one hundred twenty-five billion, one hundred forty million, four hundred twenty-four thousand, five hundred twenty".