25380005 has 16 divisors (see below), whose sum is σ = 34901760. Its totient is φ = 17356032.

The previous prime is 25379999. The next prime is 25380011. The reversal of 25380005 is 50008352.

It is an interprime number because it is at equal distance from previous prime (25379999) and next prime (25380011).

It is a cyclic number.

It is not a de Polignac number, because 25380005 - 2⁶ = 25379941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16301 + ... + 17789.

It is an arithmetic number, because the mean of its divisors is an integer number (2181360).

Almost surely, 2^25380005 is an apocalyptic number.

It is an amenable number.

25380005 is a deficient number, since it is larger than the sum of its proper divisors (9521755).

25380005 is a wasteful number, since it uses less digits than its factorization.

25380005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 25380005 is about 5037.8571833668. The cubic root of 25380005 is about 293.8758519131.

Adding to 25380005 its reverse (50008352), we get a palindrome (75388357).

The spelling of 25380005 in words is "twenty-five million, three hundred eighty thousand, five".