51057277 has 4 divisors (see below), whose sum is σ = 51071580. Its totient is φ = 51042976.

The previous prime is 51057269. The next prime is 51057287. The reversal of 51057277 is 77275015.

51057277 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 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 1692601 + 49364676 = 1301^2 + 7026^2 .

It is a cyclic number.

It is not a de Polignac number, because 51057277 - 2³ = 51057269 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 (51057247) 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, 3153 + ... + 10585.

It is an arithmetic number, because the mean of its divisors is an integer number (12767895).

Almost surely, 2^51057277 is an apocalyptic number.

It is an amenable number.

51057277 is a deficient number, since it is larger than the sum of its proper divisors (14303).

51057277 is an equidigital number, since it uses as much as digits as its factorization.

51057277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14302.

The product of its (nonzero) digits is 17150, while the sum is 34.

The square root of 51057277 is about 7145.4374953532. The cubic root of 51057277 is about 370.9817535702.

The spelling of 51057277 in words is "fifty-one million, fifty-seven thousand, two hundred seventy-seven".