51523422 has 16 divisors (see below), whose sum is σ = 104499072. Its totient is φ = 16932440.

The previous prime is 51523403. The next prime is 51523463. The reversal of 51523422 is 22432515.

It is a junction number, because it is equal to n+sod(n) for n = 51523392 and 51523401.

It is a congruent number.

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, 60048 + ... + 60899.

It is an arithmetic number, because the mean of its divisors is an integer number (6531192).

Almost surely, 2^51523422 is an apocalyptic number.

51523422 is an abundant number, since it is smaller than the sum of its proper divisors (52975650).

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

51523422 is a wasteful number, since it uses less digits than its factorization.

51523422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121023.

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

The square root of 51523422 is about 7177.9817497678. The cubic root of 51523422 is about 372.1073369298.

Adding to 51523422 its reverse (22432515), we get a palindrome (73955937).

The spelling of 51523422 in words is "fifty-one million, five hundred twenty-three thousand, four hundred twenty-two".