25152391 has 12 divisors (see below), whose sum is σ = 27944896. Its totient is φ = 22619520.

The previous prime is 25152373. The next prime is 25152419. The reversal of 25152391 is 19325152.

It is not a de Polignac number, because 25152391 - 2¹⁹ = 24628103 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25152301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10666 + ... + 12808.

Almost surely, 2^25152391 is an apocalyptic number.

25152391 is a deficient number, since it is larger than the sum of its proper divisors (2792505).

25152391 is a wasteful number, since it uses less digits than its factorization.

25152391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262 (or 2251 counting only the distinct ones).

The product of its digits is 2700, while the sum is 28.

The square root of 25152391 is about 5015.2159474942. The cubic root of 25152391 is about 292.9946960177.

The spelling of 25152391 in words is "twenty-five million, one hundred fifty-two thousand, three hundred ninety-one".