50091870 has 64 divisors (see below), whose sum is σ = 123716160. Its totient is φ = 12976128.

The previous prime is 50091857. The next prime is 50091871. The reversal of 50091870 is 7819005.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50091871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194782 + ... + 195038.

It is an arithmetic number, because the mean of its divisors is an integer number (1933065).

Almost surely, 2^50091870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50091870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61858080).

50091870 is an abundant number, since it is smaller than the sum of its proper divisors (73624290).

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

50091870 is a wasteful number, since it uses less digits than its factorization.

50091870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 50091870 is about 7077.5610205776. The cubic root of 50091870 is about 368.6286464604.

The spelling of 50091870 in words is "fifty million, ninety-one thousand, eight hundred seventy".