50155566 has 16 divisors (see below), whose sum is σ = 100386000. Its totient is φ = 16706048.

The previous prime is 50155561. The next prime is 50155579. The reversal of 50155566 is 66555105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50155561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9550 + ... + 13838.

It is an arithmetic number, because the mean of its divisors is an integer number (6274125).

Almost surely, 2^50155566 is an apocalyptic number.

50155566 is an abundant number, since it is smaller than the sum of its proper divisors (50230434).

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

50155566 is a wasteful number, since it uses less digits than its factorization.

50155566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6243.

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 50155566 is about 7082.0594462345. The cubic root of 50155566 is about 368.7848276595.

It can be divided in two parts, 50155 and 566, that added together give a triangular number (50721 = T₃₁₈).

The spelling of 50155566 in words is "fifty million, one hundred fifty-five thousand, five hundred sixty-six".