51377077 has 4 divisors (see below), whose sum is σ = 54399276. Its totient is φ = 48354880.

The previous prime is 51377071. The next prime is 51377089. The reversal of 51377077 is 77077315.

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 23435281 + 27941796 = 4841^2 + 5286^2 .

It is a cyclic number.

It is not a de Polignac number, because 51377077 - 2³ = 51377069 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 (51377071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1511074 + ... + 1511107.

It is an arithmetic number, because the mean of its divisors is an integer number (13599819).

Almost surely, 2^51377077 is an apocalyptic number.

It is an amenable number.

51377077 is a deficient number, since it is larger than the sum of its proper divisors (3022199).

51377077 is a wasteful number, since it uses less digits than its factorization.

51377077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022198.

The product of its (nonzero) digits is 36015, while the sum is 37.

The square root of 51377077 is about 7167.7804793395. The cubic root of 51377077 is about 371.7546967398.

The spelling of 51377077 in words is "fifty-one million, three hundred seventy-seven thousand, seventy-seven".