50564156440 has 48 divisors (see below), whose sum is σ = 132343945200. Its totient is φ = 17336281536.

The previous prime is 50564156287. The next prime is 50564156471. The reversal of 50564156440 is 4465146505.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 50564156393 and 50564156402.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 12897060 + ... + 12900979.

It is an arithmetic number, because the mean of its divisors is an integer number (2757165525).

Almost surely, 2^50564156440 is an apocalyptic number.

It is an amenable number.

50564156440 is an abundant number, since it is smaller than the sum of its proper divisors (81779788760).

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

50564156440 is a wasteful number, since it uses less digits than its factorization.

50564156440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25798064 (or 25798053 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 50564156440 in words is "fifty billion, five hundred sixty-four million, one hundred fifty-six thousand, four hundred forty".