525742252 has 48 divisors (see below), whose sum is σ = 1089107712. Its totient is φ = 217385280.

The previous prime is 525742183. The next prime is 525742309. The reversal of 525742252 is 252247525.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97302 + ... + 102562.

It is an arithmetic number, because the mean of its divisors is an integer number (22689744).

Almost surely, 2^525742252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525742252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (544553856).

525742252 is an abundant number, since it is smaller than the sum of its proper divisors (563365460).

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

525742252 is a wasteful number, since it uses less digits than its factorization.

525742252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5398 (or 5396 counting only the distinct ones).

The product of its digits is 56000, while the sum is 34.

The square root of 525742252 is about 22929.0700203911. The cubic root of 525742252 is about 807.0943251398.

Adding to 525742252 its reverse (252247525), we get a palindrome (777989777).

The spelling of 525742252 in words is "five hundred twenty-five million, seven hundred forty-two thousand, two hundred fifty-two".