50070091 has 4 divisors (see below), whose sum is σ = 50163184. Its totient is φ = 49977000.

The previous prime is 50070079. The next prime is 50070101. The reversal of 50070091 is 19007005.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50070091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50070991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45735 + ... + 46816.

It is an arithmetic number, because the mean of its divisors is an integer number (12540796).

Almost surely, 2^50070091 is an apocalyptic number.

50070091 is a deficient number, since it is larger than the sum of its proper divisors (93093).

50070091 is an equidigital number, since it uses as much as digits as its factorization.

50070091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93092.

The product of its (nonzero) digits is 315, while the sum is 22.

The square root of 50070091 is about 7076.0222583030. The cubic root of 50070091 is about 368.5752144557.

Subtracting from 50070091 its product of nonzero digits (315), we obtain a square (50069776 = 7076²).

Adding to 50070091 its reverse (19007005), we get a palindrome (69077096).

The spelling of 50070091 in words is "fifty million, seventy thousand, ninety-one".