525222126 has 96 divisors (see below), whose sum is σ = 1350131328. Its totient is φ = 145465920.

The previous prime is 525222101. The next prime is 525222127. The reversal of 525222126 is 621222525.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 525222126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525222127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 274465 + ... + 276371.

It is an arithmetic number, because the mean of its divisors is an integer number (14063868).

Almost surely, 2^525222126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525222126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (675065664).

525222126 is an abundant number, since it is smaller than the sum of its proper divisors (824909202).

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

525222126 is a wasteful number, since it uses less digits than its factorization.

525222126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046 (or 2043 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 525222126 is about 22917.7251488886. The cubic root of 525222126 is about 806.8280798121.

The spelling of 525222126 in words is "five hundred twenty-five million, two hundred twenty-two thousand, one hundred twenty-six".