51977011 has 4 divisors (see below), whose sum is σ = 52326000. Its totient is φ = 51628024.

The previous prime is 51976999. The next prime is 51977083. The reversal of 51977011 is 11077915.

51977011 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 an emirpimes, since its reverse is a distinct semiprime: 11077915 = 5 ⋅2215583.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51977011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51977311) 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, 174271 + ... + 174568.

It is an arithmetic number, because the mean of its divisors is an integer number (13081500).

Almost surely, 2^51977011 is an apocalyptic number.

51977011 is a deficient number, since it is larger than the sum of its proper divisors (348989).

51977011 is a wasteful number, since it uses less digits than its factorization.

51977011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348988.

The product of its (nonzero) digits is 2205, while the sum is 31.

The square root of 51977011 is about 7209.5083743623. The cubic root of 51977011 is about 373.1961032798.

The spelling of 51977011 in words is "fifty-one million, nine hundred seventy-seven thousand, eleven".