525620222 has 4 divisors (see below), whose sum is σ = 788430336. Its totient is φ = 262810110.

The previous prime is 525620209. The next prime is 525620233. The reversal of 525620222 is 222026525.

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

It is a junction number, because it is equal to n+sod(n) for n = 525620191 and 525620200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131405054 + ... + 131405057.

It is an arithmetic number, because the mean of its divisors is an integer number (197107584).

Almost surely, 2^525620222 is an apocalyptic number.

525620222 is a deficient number, since it is larger than the sum of its proper divisors (262810114).

525620222 is a wasteful number, since it uses less digits than its factorization.

525620222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262810113.

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

The square root of 525620222 is about 22926.4088334828. The cubic root of 525620222 is about 807.0318754374.

Adding to 525620222 its reverse (222026525), we get a palindrome (747646747).

The spelling of 525620222 in words is "five hundred twenty-five million, six hundred twenty thousand, two hundred twenty-two".