50999905 has 16 divisors (see below), whose sum is σ = 66902400. Its totient is φ = 37013760.

The previous prime is 50999891. The next prime is 50999959.

50999905 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 50999905 - 2⁹ = 50999393 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50041 + ... + 51049.

It is an arithmetic number, because the mean of its divisors is an integer number (4181400).

Almost surely, 2^50999905 is an apocalyptic number.

50999905 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50999905 is a deficient number, since it is larger than the sum of its proper divisors (15902495).

50999905 is a wasteful number, since it uses less digits than its factorization.

50999905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944.

The product of its (nonzero) digits is 164025, while the sum is 46.

The square root of 50999905 is about 7141.4217772094. The cubic root of 50999905 is about 370.8427466645.

The spelling of 50999905 in words is "fifty million, nine hundred ninety-nine thousand, nine hundred five".