25729396 has 24 divisors (see below), whose sum is σ = 56137536. Its totient is φ = 10024320.

The previous prime is 25729367. The next prime is 25729397. The reversal of 25729396 is 69392752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25729397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41461 + ... + 42076.

It is an arithmetic number, because the mean of its divisors is an integer number (2339064).

Almost surely, 2^25729396 is an apocalyptic number.

It is an amenable number.

25729396 is an abundant number, since it is smaller than the sum of its proper divisors (30408140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25729396 is a wasteful number, since it uses less digits than its factorization.

25729396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83559 (or 83557 counting only the distinct ones).

The product of its digits is 204120, while the sum is 43.

The square root of 25729396 is about 5072.4152038255. The cubic root of 25729396 is about 295.2182469999.

The spelling of 25729396 in words is "twenty-five million, seven hundred twenty-nine thousand, three hundred ninety-six".