525440622 has 48 divisors (see below), whose sum is σ = 1245555792. Its totient is φ = 147288960.

The previous prime is 525440579. The next prime is 525440623. The reversal of 525440622 is 226044525.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 525440622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525440623) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1279 + ... + 32442.

It is an arithmetic number, because the mean of its divisors is an integer number (25949079).

Almost surely, 2^525440622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525440622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622777896).

525440622 is an abundant number, since it is smaller than the sum of its proper divisors (720115170).

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

525440622 is a wasteful number, since it uses less digits than its factorization.

525440622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33793 (or 33786 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 525440622 is about 22922.4916184956. The cubic root of 525440622 is about 806.9399463027.

The spelling of 525440622 in words is "five hundred twenty-five million, four hundred forty thousand, six hundred twenty-two".