50545513 has 4 divisors (see below), whose sum is σ = 52743168. Its totient is φ = 48347860.

The previous prime is 50545507. The next prime is 50545519. The reversal of 50545513 is 31554505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (50545507) and next prime (50545519).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50545513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50545519) 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 in 3 ways as a sum of consecutive naturals, for example, 1098793 + ... + 1098838.

It is an arithmetic number, because the mean of its divisors is an integer number (13185792).

Almost surely, 2^50545513 is an apocalyptic number.

It is an amenable number.

50545513 is a deficient number, since it is larger than the sum of its proper divisors (2197655).

50545513 is a wasteful number, since it uses less digits than its factorization.

50545513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197654.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 50545513 is about 7109.5367640937. The cubic root of 50545513 is about 369.7380980768.

The spelling of 50545513 in words is "fifty million, five hundred forty-five thousand, five hundred thirteen".