51227870 has 8 divisors (see below), whose sum is σ = 92210184. Its totient is φ = 20491144.

The previous prime is 51227867. The next prime is 51227879. The reversal of 51227870 is 7872215.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51227879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2561384 + ... + 2561403.

It is an arithmetic number, because the mean of its divisors is an integer number (11526273).

Almost surely, 2^51227870 is an apocalyptic number.

51227870 is a deficient number, since it is larger than the sum of its proper divisors (40982314).

51227870 is a wasteful number, since it uses less digits than its factorization.

51227870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5122794.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 51227870 is about 7157.3647385054. The cubic root of 51227870 is about 371.3944700307.

It can be divided in two parts, 512 and 27870, that added together give a palindrome (28382).

The spelling of 51227870 in words is "fifty-one million, two hundred twenty-seven thousand, eight hundred seventy".