50556540 has 48 divisors (see below), whose sum is σ = 141966720. Its totient is φ = 13442880.

The previous prime is 50556533. The next prime is 50556551. The reversal of 50556540 is 4565505.

50556540 is a nontrivial binomial coefficient, being equal to C(10056, 2).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 50556498 and 50556507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24135 + ... + 26145.

It is an arithmetic number, because the mean of its divisors is an integer number (2957640).

Almost surely, 2^50556540 is an apocalyptic number.

50556540 is the 10055-th triangular number and also the 5028-th hexagonal number.

It is an amenable number.

50556540 is an abundant number, since it is smaller than the sum of its proper divisors (91410180).

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

50556540 is a wasteful number, since it uses less digits than its factorization.

50556540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442 (or 2440 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 50556540 is about 7110.3122294313. The cubic root of 50556540 is about 369.7649834541.

The spelling of 50556540 in words is "fifty million, five hundred fifty-six thousand, five hundred forty".