525181225 has 6 divisors (see below), whose sum is σ = 651224750. Its totient is φ = 420144960.

The previous prime is 525181159. The next prime is 525181253. The reversal of 525181225 is 522181525.

It can be written as a sum of positive squares in 3 ways, for example, as 148937616 + 376243609 = 12204^2 + 19397^2 .

It is not a de Polignac number, because 525181225 - 2⁹ = 525180713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10503600 + ... + 10503649.

Almost surely, 2^525181225 is an apocalyptic number.

It is an amenable number.

525181225 is a deficient number, since it is larger than the sum of its proper divisors (126043525).

525181225 is a wasteful number, since it uses less digits than its factorization.

525181225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21007259 (or 21007254 counting only the distinct ones).

The product of its digits is 8000, while the sum is 31.

The square root of 525181225 is about 22916.8327872767. The cubic root of 525181225 is about 806.8071357008.

The spelling of 525181225 in words is "five hundred twenty-five million, one hundred eighty-one thousand, two hundred twenty-five".