25155005 has 16 divisors (see below), whose sum is σ = 31190400. Its totient is φ = 19461312.

The previous prime is 25154999. The next prime is 25155023. The reversal of 25155005 is 50055152.

25155005 is nontrivially palindromic in base 13.

It is a cyclic number.

It is not a de Polignac number, because 25155005 - 2⁸ = 25154749 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41696 + ... + 42294.

It is an arithmetic number, because the mean of its divisors is an integer number (1949400).

Almost surely, 2^25155005 is an apocalyptic number.

It is an amenable number.

25155005 is a deficient number, since it is larger than the sum of its proper divisors (6035395).

25155005 is a wasteful number, since it uses less digits than its factorization.

25155005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868.

The product of its (nonzero) digits is 1250, while the sum is 23.

The square root of 25155005 is about 5015.4765476473. The cubic root of 25155005 is about 293.0048456373.

The spelling of 25155005 in words is "twenty-five million, one hundred fifty-five thousand, five".