51370877 has 4 divisors (see below), whose sum is σ = 51654876. Its totient is φ = 51086880.

The previous prime is 51370867. The next prime is 51370897. The reversal of 51370877 is 77807315.

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 376996 + 50993881 = 614^2 + 7141^2 .

It is a cyclic number.

It is not a de Polignac number, because 51370877 - 2¹² = 51366781 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51370877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51370867) 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, 141728 + ... + 142089.

It is an arithmetic number, because the mean of its divisors is an integer number (12913719).

Almost surely, 2^51370877 is an apocalyptic number.

It is an amenable number.

51370877 is a deficient number, since it is larger than the sum of its proper divisors (283999).

51370877 is a wasteful number, since it uses less digits than its factorization.

51370877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283998.

The product of its (nonzero) digits is 41160, while the sum is 38.

The square root of 51370877 is about 7167.3479753672. The cubic root of 51370877 is about 371.7397421337.

The spelling of 51370877 in words is "fifty-one million, three hundred seventy thousand, eight hundred seventy-seven".