51534222 has 8 divisors (see below), whose sum is σ = 103068456. Its totient is φ = 17178072.

The previous prime is 51534211. The next prime is 51534227. The reversal of 51534222 is 22243515.

It is a sphenic number, since it is the product of 3 distinct primes.

51534222 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 51534192 and 51534201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51534227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4294513 + ... + 4294524.

It is an arithmetic number, because the mean of its divisors is an integer number (12883557).

Almost surely, 2^51534222 is an apocalyptic number.

51534222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51534222 is a wasteful number, since it uses less digits than its factorization.

51534222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8589042.

The product of its digits is 2400, while the sum is 24.

The square root of 51534222 is about 7178.7340109521. The cubic root of 51534222 is about 372.1333346756.

Adding to 51534222 its reverse (22243515), we get a palindrome (73777737).

The spelling of 51534222 in words is "fifty-one million, five hundred thirty-four thousand, two hundred twenty-two".