50075513 has 4 divisors (see below), whose sum is σ = 51020388. Its totient is φ = 49130640.

The previous prime is 50075503. The next prime is 50075527. The reversal of 50075513 is 31557005.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22534009 + 27541504 = 4747^2 + 5248^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50075513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50075503) 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, 472358 + ... + 472463.

It is an arithmetic number, because the mean of its divisors is an integer number (12755097).

Almost surely, 2^50075513 is an apocalyptic number.

50075513 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

50075513 is a deficient number, since it is larger than the sum of its proper divisors (944875).

50075513 is an equidigital number, since it uses as much as digits as its factorization.

50075513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944874.

The product of its (nonzero) digits is 2625, while the sum is 26.

The square root of 50075513 is about 7076.4053727864. The cubic root of 50075513 is about 368.5885180910.

The spelling of 50075513 in words is "fifty million, seventy-five thousand, five hundred thirteen".