51920277 has 8 divisors (see below), whose sum is σ = 69401280. Its totient is φ = 34526400.

The previous prime is 51920273. The next prime is 51920279. The reversal of 51920277 is 77202915.

51920277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51920277 - 2² = 51920273 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51920273) 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 7 ways as a sum of consecutive naturals, for example, 20377 + ... + 22782.

It is an arithmetic number, because the mean of its divisors is an integer number (8675160).

Almost surely, 2^51920277 is an apocalyptic number.

It is an amenable number.

51920277 is a deficient number, since it is larger than the sum of its proper divisors (17481003).

51920277 is a wasteful number, since it uses less digits than its factorization.

51920277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43563.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 51920277 is about 7205.5726351207. The cubic root of 51920277 is about 373.0602700492.

The spelling of 51920277 in words is "fifty-one million, nine hundred twenty thousand, two hundred seventy-seven".