52400122 has 8 divisors (see below), whose sum is σ = 78638400. Its totient is φ = 26187324.

The previous prime is 52400087. The next prime is 52400149. The reversal of 52400122 is 22100425.

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

It is a super-2 number, since 2×52400122² = 5491545571229768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52400096 and 52400105.

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, 79 + ... + 10237.

It is an arithmetic number, because the mean of its divisors is an integer number (9829800).

Almost surely, 2^52400122 is an apocalyptic number.

52400122 is a deficient number, since it is larger than the sum of its proper divisors (26238278).

52400122 is a wasteful number, since it uses less digits than its factorization.

52400122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12740.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 52400122 is about 7238.7928551658. The cubic root of 52400122 is about 374.2060166870.

Adding to 52400122 its reverse (22100425), we get a palindrome (74500547).

The spelling of 52400122 in words is "fifty-two million, four hundred thousand, one hundred twenty-two".