25261836 has 24 divisors (see below), whose sum is σ = 59029824. Its totient is φ = 8408400.

The previous prime is 25261829. The next prime is 25261837. The reversal of 25261836 is 63816252.

It is a junction number, because it is equal to n+sod(n) for n = 25261797 and 25261806.

It is not an unprimeable number, because it can be changed into a prime (25261837) 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, 11611 + ... + 13613.

It is an arithmetic number, because the mean of its divisors is an integer number (2459576).

Almost surely, 2^25261836 is an apocalyptic number.

It is an amenable number.

25261836 is an abundant number, since it is smaller than the sum of its proper divisors (33767988).

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

25261836 is a wasteful number, since it uses less digits than its factorization.

25261836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3061 (or 3059 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 25261836 is about 5026.1153985956. The cubic root of 25261836 is about 293.4190480685.

The spelling of 25261836 in words is "twenty-five million, two hundred sixty-one thousand, eight hundred thirty-six".