51422242 has 16 divisors (see below), whose sum is σ = 80524800. Its totient is φ = 24599520.

The previous prime is 51422233. The next prime is 51422251. The reversal of 51422242 is 24222415.

It is an interprime number because it is at equal distance from previous prime (51422233) and next prime (51422251).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 859 + ... + 10177.

It is an arithmetic number, because the mean of its divisors is an integer number (5032800).

Almost surely, 2^51422242 is an apocalyptic number.

51422242 is a deficient number, since it is larger than the sum of its proper divisors (29102558).

51422242 is a wasteful number, since it uses less digits than its factorization.

51422242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9441.

The product of its digits is 1280, while the sum is 22.

The square root of 51422242 is about 7170.9303441046. The cubic root of 51422242 is about 371.8635999330.

Adding to 51422242 its reverse (24222415), we get a palindrome (75644657).

The spelling of 51422242 in words is "fifty-one million, four hundred twenty-two thousand, two hundred forty-two".