56250121420 has 24 divisors (see below), whose sum is σ = 118341229104. Its totient is φ = 22458910656.

The previous prime is 56250121399. The next prime is 56250121429. The reversal of 56250121420 is 2412105265.

It is not an unprimeable number, because it can be changed into a prime (56250121429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2559907 + ... + 2581786.

It is an arithmetic number, because the mean of its divisors is an integer number (4930884546).

Almost surely, 2^56250121420 is an apocalyptic number.

It is an amenable number.

56250121420 is an abundant number, since it is smaller than the sum of its proper divisors (62091107684).

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

56250121420 is a wasteful number, since it uses less digits than its factorization.

56250121420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5142249 (or 5142247 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 56250121420 its reverse (2412105265), we get a palindrome (58662226685).

The spelling of 56250121420 in words is "fifty-six billion, two hundred fifty million, one hundred twenty-one thousand, four hundred twenty".