51227430 has 16 divisors (see below), whose sum is σ = 122945904. Its totient is φ = 13660640.

The previous prime is 51227413. The next prime is 51227431. The reversal of 51227430 is 3472215.

51227430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51227430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51227431) 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, 853761 + ... + 853820.

It is an arithmetic number, because the mean of its divisors is an integer number (7684119).

Almost surely, 2^51227430 is an apocalyptic number.

51227430 is an abundant number, since it is smaller than the sum of its proper divisors (71718474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51227430 is a wasteful number, since it uses less digits than its factorization.

51227430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707591.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 51227430 is about 7157.3340008693. The cubic root of 51227430 is about 371.3934067160.

Adding to 51227430 its reverse (3472215), we get a palindrome (54699645).

The spelling of 51227430 in words is "fifty-one million, two hundred twenty-seven thousand, four hundred thirty".