25861072 has 20 divisors (see below), whose sum is σ = 50929156. Its totient is φ = 12718080.

The previous prime is 25861049. The next prime is 25861081. The reversal of 25861072 is 27016852.

It can be written as a sum of positive squares in 2 ways, for example, as 11451456 + 14409616 = 3384^2 + 3796^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12273 + ... + 14224.

Almost surely, 2^25861072 is an apocalyptic number.

It is an amenable number.

25861072 is a deficient number, since it is larger than the sum of its proper divisors (25068084).

25861072 is a wasteful number, since it uses less digits than its factorization.

25861072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26566 (or 26560 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 25861072 is about 5085.3782553513. The cubic root of 25861072 is about 295.7210056828.

The spelling of 25861072 in words is "twenty-five million, eight hundred sixty-one thousand, seventy-two".