51223370 has 32 divisors (see below), whose sum is σ = 101977920. Its totient is φ = 18368640.

The previous prime is 51223357. The next prime is 51223379. The reversal of 51223370 is 7332215.

51223370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51223379) 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 15 ways as a sum of consecutive naturals, for example, 4841 + ... + 11219.

It is an arithmetic number, because the mean of its divisors is an integer number (3186810).

Almost surely, 2^51223370 is an apocalyptic number.

51223370 is a deficient number, since it is larger than the sum of its proper divisors (50754550).

51223370 is a wasteful number, since it uses less digits than its factorization.

51223370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6470.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 51223370 is about 7157.0503700896. The cubic root of 51223370 is about 371.3835949344.

Adding to 51223370 its reverse (7332215), we get a palindrome (58555585).

The spelling of 51223370 in words is "fifty-one million, two hundred twenty-three thousand, three hundred seventy".