525000249 has 6 divisors (see below), whose sum is σ = 758333706. Its totient is φ = 350000160.

The previous prime is 525000247. The next prime is 525000257. The reversal of 525000249 is 942000525.

It can be written as a sum of positive squares in only one way, i.e., 313821225 + 211179024 = 17715^2 + 14532^2 .

It is not a de Polignac number, because 525000249 - 2¹ = 525000247 is a prime.

It is a super-2 number, since 2×525000249² = 551250522900124002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (525000241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29166672 + ... + 29166689.

It is an arithmetic number, because the mean of its divisors is an integer number (126388951).

Almost surely, 2^525000249 is an apocalyptic number.

It is an amenable number.

525000249 is a deficient number, since it is larger than the sum of its proper divisors (233333457).

525000249 is a wasteful number, since it uses less digits than its factorization.

525000249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58333367 (or 58333364 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 525000249 is about 22912.8839084040. The cubic root of 525000249 is about 806.7144505499.

The spelling of 525000249 in words is "five hundred twenty-five million, two hundred forty-nine", and thus it is an aban number.