50491506 has 16 divisors (see below), whose sum is σ = 108751104. Its totient is φ = 15535824.

The previous prime is 50491501. The next prime is 50491537. The reversal of 50491506 is 60519405.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50491501) 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, 323586 + ... + 323741.

It is an arithmetic number, because the mean of its divisors is an integer number (6796944).

Almost surely, 2^50491506 is an apocalyptic number.

50491506 is an abundant number, since it is smaller than the sum of its proper divisors (58259598).

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

50491506 is a wasteful number, since it uses less digits than its factorization.

50491506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647345.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 50491506 is about 7105.7375408891. The cubic root of 50491506 is about 369.6063649088.

It can be divided in two parts, 5049 and 1506, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 50491506 in words is "fifty million, four hundred ninety-one thousand, five hundred six".