525143252 has 48 divisors (see below), whose sum is σ = 983782800. Its totient is φ = 244823040.

The previous prime is 525143249. The next prime is 525143273. The reversal of 525143252 is 252341525.

It can be written as a sum of positive squares in 8 ways, for example, as 138391696 + 386751556 = 11764^2 + 19666^2 .

It is a super-2 number, since 2×525143252² = 551550870242271008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

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, 517898 + ... + 518910.

It is an arithmetic number, because the mean of its divisors is an integer number (20495475).

Almost surely, 2^525143252 is an apocalyptic number.

It is an amenable number.

525143252 is a deficient number, since it is larger than the sum of its proper divisors (458639548).

525143252 is a wasteful number, since it uses less digits than its factorization.

525143252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196 (or 1194 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 525143252 is about 22916.0042764876. The cubic root of 525143252 is about 806.7876899525.

Adding to 525143252 its reverse (252341525), we get a palindrome (777484777).

The spelling of 525143252 in words is "five hundred twenty-five million, one hundred forty-three thousand, two hundred fifty-two".