25726830 has 32 divisors (see below), whose sum is σ = 62113824. Its totient is φ = 6819456.

The previous prime is 25726829. The next prime is 25726837. The reversal of 25726830 is 3862752.

It is a junction number, because it is equal to n+sod(n) for n = 25726791 and 25726800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25726837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2712 + ... + 7668.

It is an arithmetic number, because the mean of its divisors is an integer number (1941057).

Almost surely, 2^25726830 is an apocalyptic number.

25726830 is an abundant number, since it is smaller than the sum of its proper divisors (36386994).

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

25726830 is a wasteful number, since it uses less digits than its factorization.

25726830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5140.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 25726830 is about 5072.1622608115. The cubic root of 25726830 is about 295.2084326070.

The spelling of 25726830 in words is "twenty-five million, seven hundred twenty-six thousand, eight hundred thirty".