50171970 has 128 divisors (see below), whose sum is σ = 136857600. Its totient is φ = 11708928.

The previous prime is 50171941. The next prime is 50171971. The reversal of 50171970 is 7917105.

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

It is not an unprimeable number, because it can be changed into a prime (50171971) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 563686 + ... + 563774.

It is an arithmetic number, because the mean of its divisors is an integer number (1069200).

Almost surely, 2^50171970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50171970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68428800).

50171970 is an abundant number, since it is smaller than the sum of its proper divisors (86685630).

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

50171970 is a wasteful number, since it uses less digits than its factorization.

50171970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184.

The product of its (nonzero) digits is 2205, while the sum is 30.

The square root of 50171970 is about 7083.2174892488. The cubic root of 50171970 is about 368.8250284945.

The spelling of 50171970 in words is "fifty million, one hundred seventy-one thousand, nine hundred seventy".