51477877 has 12 divisors (see below), whose sum is σ = 56766528. Its totient is φ = 46646600.

The previous prime is 51477847. The next prime is 51477931. The reversal of 51477877 is 77877415.

It is a happy number.

It is not a de Polignac number, because 51477877 - 2¹¹ = 51475829 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 (51477817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56052 + ... + 56962.

It is an arithmetic number, because the mean of its divisors is an integer number (4730544).

Almost surely, 2^51477877 is an apocalyptic number.

It is an amenable number.

51477877 is a deficient number, since it is larger than the sum of its proper divisors (5288651).

51477877 is a wasteful number, since it uses less digits than its factorization.

51477877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400 (or 1389 counting only the distinct ones).

The product of its digits is 384160, while the sum is 46.

The square root of 51477877 is about 7174.8084991866. The cubic root of 51477877 is about 371.9976610829.

The spelling of 51477877 in words is "fifty-one million, four hundred seventy-seven thousand, eight hundred seventy-seven".