525401252 has 12 divisors (see below), whose sum is σ = 973537740. Its totient is φ = 247247616.

The previous prime is 525401161. The next prime is 525401263. The reversal of 525401252 is 252104525.

It can be written as a sum of positive squares in 2 ways, for example, as 335402596 + 189998656 = 18314^2 + 13784^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3863177 + ... + 3863312.

It is an arithmetic number, because the mean of its divisors is an integer number (81128145).

Almost surely, 2^525401252 is an apocalyptic number.

It is an amenable number.

525401252 is a deficient number, since it is larger than the sum of its proper divisors (448136488).

525401252 is a wasteful number, since it uses less digits than its factorization.

525401252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7726510 (or 7726508 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 525401252 is about 22921.6328388708. The cubic root of 525401252 is about 806.9197917772.

Adding to 525401252 its reverse (252104525), we get a palindrome (777505777).

The spelling of 525401252 in words is "five hundred twenty-five million, four hundred one thousand, two hundred fifty-two".