525022428 has 48 divisors (see below), whose sum is σ = 1402168320. Its totient is φ = 149780544.

The previous prime is 525022411. The next prime is 525022439. The reversal of 525022428 is 824220525.

It is a junction number, because it is equal to n+sod(n) for n = 525022395 and 525022404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56050 + ... + 64742.

It is an arithmetic number, because the mean of its divisors is an integer number (29211840).

Almost surely, 2^525022428 is an apocalyptic number.

It is an amenable number.

525022428 is an abundant number, since it is smaller than the sum of its proper divisors (877145892).

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

525022428 is a wasteful number, since it uses less digits than its factorization.

525022428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9426 (or 9424 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 525022428 is about 22913.3678886365. The cubic root of 525022428 is about 806.7258104607.

The spelling of 525022428 in words is "five hundred twenty-five million, twenty-two thousand, four hundred twenty-eight".