51423260 has 24 divisors (see below), whose sum is σ = 123416160. Its totient is φ = 17630784.

The previous prime is 51423259. The next prime is 51423263. The reversal of 51423260 is 6232415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51423263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183515 + ... + 183794.

It is an arithmetic number, because the mean of its divisors is an integer number (5142340).

Almost surely, 2^51423260 is an apocalyptic number.

It is an amenable number.

51423260 is an abundant number, since it is smaller than the sum of its proper divisors (71992900).

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

51423260 is a wasteful number, since it uses less digits than its factorization.

51423260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367325 (or 367323 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 51423260 is about 7171.0013247802. The cubic root of 51423260 is about 371.8660538299.

Adding to 51423260 its reverse (6232415), we get a palindrome (57655675).

The spelling of 51423260 in words is "fifty-one million, four hundred twenty-three thousand, two hundred sixty".