25251938 has 8 divisors (see below), whose sum is σ = 37906140. Its totient is φ = 12616560.

The previous prime is 25251937. The next prime is 25251943. The reversal of 25251938 is 83915252.

It can be written as a sum of positive squares in 2 ways, for example, as 24373969 + 877969 = 4937^2 + 937^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 25251898 and 25251907.

It is not an unprimeable number, because it can be changed into a prime (25251937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653 + ... + 7136.

Almost surely, 2^25251938 is an apocalyptic number.

25251938 is a deficient number, since it is larger than the sum of its proper divisors (12654202).

25251938 is a wasteful number, since it uses less digits than its factorization.

25251938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9412.

The product of its digits is 21600, while the sum is 35.

The square root of 25251938 is about 5025.1306450678. The cubic root of 25251938 is about 293.3807209369.

The spelling of 25251938 in words is "twenty-five million, two hundred fifty-one thousand, nine hundred thirty-eight".