25901205 has 32 divisors (see below), whose sum is σ = 46776960. Its totient is φ = 12122880.

The previous prime is 25901201. The next prime is 25901233. The reversal of 25901205 is 50210952.

It is not a de Polignac number, because 25901205 - 2² = 25901201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25901201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2079 + ... + 7491.

It is an arithmetic number, because the mean of its divisors is an integer number (1461780).

Almost surely, 2^25901205 is an apocalyptic number.

It is an amenable number.

25901205 is a deficient number, since it is larger than the sum of its proper divisors (20875755).

25901205 is a wasteful number, since it uses less digits than its factorization.

25901205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5461.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 25901205 is about 5089.3226464825. The cubic root of 25901205 is about 295.8739000553.

It can be divided in two parts, 25901 and 205, that added together give a triangular number (26106 = T₂₂₈).

The spelling of 25901205 in words is "twenty-five million, nine hundred one thousand, two hundred five".