25315387 has 8 divisors (see below), whose sum is σ = 26553600. Its totient is φ = 24088680.

The previous prime is 25315373. The next prime is 25315403. The reversal of 25315387 is 78351352.

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 25315387 - 2²³ = 16926779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25315337) 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, 1812 + ... + 7342.

It is an arithmetic number, because the mean of its divisors is an integer number (3319200).

Almost surely, 2^25315387 is an apocalyptic number.

25315387 is a deficient number, since it is larger than the sum of its proper divisors (1238213).

25315387 is a wasteful number, since it uses less digits than its factorization.

25315387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5753.

The product of its digits is 25200, while the sum is 34.

The square root of 25315387 is about 5031.4398535608. The cubic root of 25315387 is about 293.6262353526.

The spelling of 25315387 in words is "twenty-five million, three hundred fifteen thousand, three hundred eighty-seven".