51877244 has 6 divisors (see below), whose sum is σ = 90785184. Its totient is φ = 25938620.

The previous prime is 51877223. The next prime is 51877247. The reversal of 51877244 is 44277815.

It is a junction number, because it is equal to n+sod(n) for n = 51877198 and 51877207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51877247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6484652 + ... + 6484659.

It is an arithmetic number, because the mean of its divisors is an integer number (15130864).

Almost surely, 2^51877244 is an apocalyptic number.

It is an amenable number.

51877244 is a deficient number, since it is larger than the sum of its proper divisors (38907940).

51877244 is a wasteful number, since it uses less digits than its factorization.

51877244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12969315 (or 12969313 counting only the distinct ones).

The product of its digits is 62720, while the sum is 38.

The square root of 51877244 is about 7202.5859245135. The cubic root of 51877244 is about 372.9571739123.

The spelling of 51877244 in words is "fifty-one million, eight hundred seventy-seven thousand, two hundred forty-four".