50155 has 8 divisors (see below), whose sum is σ = 68832. Its totient is φ = 34368.
The previous prime is 50153. The next prime is 50159. The reversal of 50155 is 55105.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 50155 - 21 = 50153 is a prime.
It is a super-4 number, since 4×501554 = 25311444481408802500, which contains 4444 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (50153) 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, 682 + ... + 751.
It is an arithmetic number, because the mean of its divisors is an integer number (8604).
250155 is an apocalyptic number.
50155 is a deficient number, since it is larger than the sum of its proper divisors (18677).
50155 is a wasteful number, since it uses less digits than its factorization.
50155 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1445.
The product of its (nonzero) digits is 125, while the sum is 16.
The square root of 50155 is about 223.9531200944. The cubic root of 50155 is about 36.8783440422.
Subtracting 50155 from its reverse (55105), we obtain a triangular number (4950 = T99).
It can be divided in two parts, 50 and 155, that multiplied together give a triangular number (7750 = T124).
The spelling of 50155 in words is "fifty thousand, one hundred fifty-five".
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