250115725 has 6 divisors (see below), whose sum is σ = 310143530. Its totient is φ = 200092560.

The previous prime is 250115699. The next prime is 250115743. The reversal of 250115725 is 527511052.

It can be written as a sum of positive squares in 3 ways, for example, as 4848804 + 245266921 = 2202^2 + 15661^2 .

It is not a de Polignac number, because 250115725 - 2⁹ = 250115213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 250115693 and 250115702.

It is a congruent number.

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, 5002290 + ... + 5002339.

Almost surely, 2^250115725 is an apocalyptic number.

250115725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

250115725 is a deficient number, since it is larger than the sum of its proper divisors (60027805).

250115725 is a wasteful number, since it uses less digits than its factorization.

250115725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10004639 (or 10004634 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 250115725 is about 15815.0474232612. The cubic root of 250115725 is about 630.0577128619.

Adding to 250115725 its reverse (527511052), we get a palindrome (777626777).

The spelling of 250115725 in words is "two hundred fifty million, one hundred fifteen thousand, seven hundred twenty-five".