51534422 has 8 divisors (see below), whose sum is σ = 81370200. Its totient is φ = 24411024.

The previous prime is 51534407. The next prime is 51534449. The reversal of 51534422 is 22443515.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 51534391 and 51534400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678047 + ... + 678122.

It is an arithmetic number, because the mean of its divisors is an integer number (10171275).

Almost surely, 2^51534422 is an apocalyptic number.

51534422 is a deficient number, since it is larger than the sum of its proper divisors (29835778).

51534422 is a wasteful number, since it uses less digits than its factorization.

51534422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356190.

The product of its digits is 4800, while the sum is 26.

The square root of 51534422 is about 7178.7479409713. The cubic root of 51534422 is about 372.1338160810.

Adding to 51534422 its reverse (22443515), we get a palindrome (73977937).

The spelling of 51534422 in words is "fifty-one million, five hundred thirty-four thousand, four hundred twenty-two".