25247005 has 12 divisors (see below), whose sum is σ = 35243100. Its totient is φ = 17312064.

The previous prime is 25247003. The next prime is 25247011. The reversal of 25247005 is 50074252.

It can be written as a sum of positive squares in 2 ways, for example, as 7958041 + 17288964 = 2821^2 + 4158^2 .

It is not a de Polignac number, because 25247005 - 2¹ = 25247003 is a prime.

It is a super-2 number, since 2×25247005² = 1274822522940050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25247003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51280 + ... + 51769.

It is an arithmetic number, because the mean of its divisors is an integer number (2936925).

Almost surely, 2^25247005 is an apocalyptic number.

It is an amenable number.

25247005 is a deficient number, since it is larger than the sum of its proper divisors (9996095).

25247005 is a wasteful number, since it uses less digits than its factorization.

25247005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103068 (or 103061 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 25247005 is about 5024.6397880843. The cubic root of 25247005 is about 293.3616155868.

The spelling of 25247005 in words is "twenty-five million, two hundred forty-seven thousand, five".