25145738 has 8 divisors (see below), whose sum is σ = 37816740. Its totient is φ = 12540160.

The previous prime is 25145717. The next prime is 25145753. The reversal of 25145738 is 83754152.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24078649 + 1067089 = 4907^2 + 1033^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25145698 and 25145707.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15383 + ... + 16938.

Almost surely, 2^25145738 is an apocalyptic number.

25145738 is a deficient number, since it is larger than the sum of its proper divisors (12671002).

25145738 is a wasteful number, since it uses less digits than its factorization.

25145738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32712.

The product of its digits is 33600, while the sum is 35.

The square root of 25145738 is about 5014.5526221189. The cubic root of 25145738 is about 292.9688606262.

The spelling of 25145738 in words is "twenty-five million, one hundred forty-five thousand, seven hundred thirty-eight".