51219862 has 8 divisors (see below), whose sum is σ = 77435136. Its totient is φ = 25408152.

The previous prime is 51219853. The next prime is 51219869. The reversal of 51219862 is 26891215.

51219862 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51219869) 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, 100573 + ... + 101080.

It is an arithmetic number, because the mean of its divisors is an integer number (9679392).

Almost surely, 2^51219862 is an apocalyptic number.

51219862 is a deficient number, since it is larger than the sum of its proper divisors (26215274).

51219862 is a wasteful number, since it uses less digits than its factorization.

51219862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201782.

The product of its digits is 8640, while the sum is 34.

The square root of 51219862 is about 7156.8052928664. The cubic root of 51219862 is about 371.3751167509.

The spelling of 51219862 in words is "fifty-one million, two hundred nineteen thousand, eight hundred sixty-two".