25123287 has 8 divisors (see below), whose sum is σ = 38283136. Its totient is φ = 14356152.

The previous prime is 25123271. The next prime is 25123303. The reversal of 25123287 is 78232152.

It is an interprime number because it is at equal distance from previous prime (25123271) and next prime (25123303).

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

It is not a de Polignac number, because 25123287 - 2⁴ = 25123271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25123247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598153 + ... + 598194.

It is an arithmetic number, because the mean of its divisors is an integer number (4785392).

Almost surely, 2^25123287 is an apocalyptic number.

25123287 is a deficient number, since it is larger than the sum of its proper divisors (13159849).

25123287 is a wasteful number, since it uses less digits than its factorization.

25123287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196357.

The product of its digits is 6720, while the sum is 30.

The square root of 25123287 is about 5012.3135376790. The cubic root of 25123287 is about 292.8816436939.

The spelling of 25123287 in words is "twenty-five million, one hundred twenty-three thousand, two hundred eighty-seven".