25113405 has 16 divisors (see below), whose sum is σ = 40353984. Its totient is φ = 13336320.

The previous prime is 25113377. The next prime is 25113457. The reversal of 25113405 is 50431152.

It is not a de Polignac number, because 25113405 - 2²⁰ = 24064829 is a prime.

It is a super-2 number, since 2×25113405² = 1261366221388050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 142 + ... + 7088.

It is an arithmetic number, because the mean of its divisors is an integer number (2522124).

Almost surely, 2^25113405 is an apocalyptic number.

It is an amenable number.

25113405 is a deficient number, since it is larger than the sum of its proper divisors (15240579).

25113405 is a wasteful number, since it uses less digits than its factorization.

25113405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7196.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 25113405 is about 5011.3276683929. The cubic root of 25113405 is about 292.8432379449.

Adding to 25113405 its reverse (50431152), we get a palindrome (75544557).

The spelling of 25113405 in words is "twenty-five million, one hundred thirteen thousand, four hundred five".