25434261 has 12 divisors (see below), whose sum is σ = 38899692. Its totient is φ = 15958656.

The previous prime is 25434257. The next prime is 25434263. The reversal of 25434261 is 16243452.

It can be written as a sum of positive squares in 2 ways, for example, as 8468100 + 16966161 = 2910^2 + 4119^2 .

It is not a de Polignac number, because 25434261 - 2² = 25434257 is a prime.

It is a super-2 number, since 2×25434261² = 1293803265232242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25434263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82966 + ... + 83271.

It is an arithmetic number, because the mean of its divisors is an integer number (3241641).

Almost surely, 2^25434261 is an apocalyptic number.

It is an amenable number.

25434261 is a deficient number, since it is larger than the sum of its proper divisors (13465431).

25434261 is a wasteful number, since it uses less digits than its factorization.

25434261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166260 (or 166257 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 25434261 is about 5043.2391376971. The cubic root of 25434261 is about 294.0851134940.

The spelling of 25434261 in words is "twenty-five million, four hundred thirty-four thousand, two hundred sixty-one".