51377013 has 24 divisors (see below), whose sum is σ = 77366016. Its totient is φ = 32817600.

The previous prime is 51377003. The next prime is 51377057. The reversal of 51377013 is 31077315.

It is not a de Polignac number, because 51377013 - 2²¹ = 49279861 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51377003) 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 23 ways as a sum of consecutive naturals, for example, 28993 + ... + 30713.

It is an arithmetic number, because the mean of its divisors is an integer number (3223584).

Almost surely, 2^51377013 is an apocalyptic number.

It is an amenable number.

51377013 is a deficient number, since it is larger than the sum of its proper divisors (25989003).

51377013 is a wasteful number, since it uses less digits than its factorization.

51377013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865 (or 1862 counting only the distinct ones).

The product of its (nonzero) digits is 2205, while the sum is 27.

The square root of 51377013 is about 7167.7760149156. The cubic root of 51377013 is about 371.7545423758.

The spelling of 51377013 in words is "fifty-one million, three hundred seventy-seven thousand, thirteen".