50811253 has 4 divisors (see below), whose sum is σ = 51115680. Its totient is φ = 50506828.

The previous prime is 50811217. The next prime is 50811281. The reversal of 50811253 is 35211805.

It is a happy number.

50811253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 50811253 - 2¹³ = 50803061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50811203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151963 + ... + 152296.

It is an arithmetic number, because the mean of its divisors is an integer number (12778920).

Almost surely, 2^50811253 is an apocalyptic number.

It is an amenable number.

50811253 is a deficient number, since it is larger than the sum of its proper divisors (304427).

50811253 is a wasteful number, since it uses less digits than its factorization.

50811253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304426.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 50811253 is about 7128.2012457562. The cubic root of 50811253 is about 370.3849244650.

The spelling of 50811253 in words is "fifty million, eight hundred eleven thousand, two hundred fifty-three".