25744072 has 8 divisors (see below), whose sum is σ = 48270150. Its totient is φ = 12872032.

The previous prime is 25744049. The next prime is 25744073. The reversal of 25744072 is 27044752.

It can be written as a sum of positive squares in only one way, i.e., 17757796 + 7986276 = 4214^2 + 2826^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (25744073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1608997 + ... + 1609012.

Almost surely, 2^25744072 is an apocalyptic number.

It is an amenable number.

25744072 is a deficient number, since it is larger than the sum of its proper divisors (22526078).

25744072 is a wasteful number, since it uses less digits than its factorization.

25744072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3218015 (or 3218011 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 25744072 is about 5073.8616457290. The cubic root of 25744072 is about 295.2743669788.

The spelling of 25744072 in words is "twenty-five million, seven hundred forty-four thousand, seventy-two".