25137005 has 8 divisors (see below), whose sum is σ = 30220152. Its totient is φ = 20072448.

The previous prime is 25136989. The next prime is 25137011. The reversal of 25137005 is 50073152.

It can be written as a sum of positive squares in 4 ways, for example, as 17330569 + 7806436 = 4163^2 + 2794^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25137005 - 2⁴ = 25136989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1472 + ... + 7241.

It is an arithmetic number, because the mean of its divisors is an integer number (3777519).

Almost surely, 2^25137005 is an apocalyptic number.

It is an amenable number.

25137005 is a deficient number, since it is larger than the sum of its proper divisors (5083147).

25137005 is an equidigital number, since it uses as much as digits as its factorization.

25137005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9295.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 25137005 is about 5013.6817808872. The cubic root of 25137005 is about 292.9349411166.

The spelling of 25137005 in words is "twenty-five million, one hundred thirty-seven thousand, five".