52505422 has 4 divisors (see below), whose sum is σ = 78758136. Its totient is φ = 26252710.

The previous prime is 52505407. The next prime is 52505429. The reversal of 52505422 is 22450525.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13126354 + ... + 13126357.

It is an arithmetic number, because the mean of its divisors is an integer number (19689534).

Almost surely, 2^52505422 is an apocalyptic number.

52505422 is a deficient number, since it is larger than the sum of its proper divisors (26252714).

52505422 is a wasteful number, since it uses less digits than its factorization.

52505422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26252713.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 52505422 is about 7246.0625169812. The cubic root of 52505422 is about 374.4565092874.

Adding to 52505422 its reverse (22450525), we get a palindrome (74955947).

The spelling of 52505422 in words is "fifty-two million, five hundred five thousand, four hundred twenty-two".