50491501 has 2 divisors, whose sum is σ = 50491502. Its totient is φ = 50491500.

The previous prime is 50491499. The next prime is 50491537. The reversal of 50491501 is 10519405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45765225 + 4726276 = 6765^2 + 2174^2 .

It is a cyclic number.

It is not a de Polignac number, because 50491501 - 2¹ = 50491499 is a prime.

Together with 50491499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50491201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25245750 + 25245751.

It is an arithmetic number, because the mean of its divisors is an integer number (25245751).

Almost surely, 2^50491501 is an apocalyptic number.

It is an amenable number.

50491501 is a deficient number, since it is larger than the sum of its proper divisors (1).

50491501 is an equidigital number, since it uses as much as digits as its factorization.

50491501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 50491501 is about 7105.7371890607. The cubic root of 50491501 is about 369.6063527086.

The spelling of 50491501 in words is "fifty million, four hundred ninety-one thousand, five hundred one".