50778253 has 4 divisors (see below), whose sum is σ = 50792508. Its totient is φ = 50764000.

The previous prime is 50778251. The next prime is 50778263. The reversal of 50778253 is 35287705.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 29452329 + 21325924 = 5427^2 + 4618^2 .

It is a cyclic number.

It is not a de Polignac number, because 50778253 - 2¹ = 50778251 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 (50778251) 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, 3375 + ... + 10627.

It is an arithmetic number, because the mean of its divisors is an integer number (12698127).

Almost surely, 2^50778253 is an apocalyptic number.

It is an amenable number.

50778253 is a deficient number, since it is larger than the sum of its proper divisors (14255).

50778253 is an equidigital number, since it uses as much as digits as its factorization.

50778253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14254.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 50778253 is about 7125.8861203362. The cubic root of 50778253 is about 370.3047234019.

The spelling of 50778253 in words is "fifty million, seven hundred seventy-eight thousand, two hundred fifty-three".