25486736 has 40 divisors (see below), whose sum is σ = 54237600. Its totient is φ = 11505920.

The previous prime is 25486729. The next prime is 25486739. The reversal of 25486736 is 63768452.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25486693 and 25486702.

It is not an unprimeable number, because it can be changed into a prime (25486739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31100 + ... + 31908.

It is an arithmetic number, because the mean of its divisors is an integer number (1355940).

Almost surely, 2^25486736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25486736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27118800).

25486736 is an abundant number, since it is smaller than the sum of its proper divisors (28750864).

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

25486736 is a wasteful number, since it uses less digits than its factorization.

25486736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007 (or 1001 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 25486736 is about 5048.4389666510. The cubic root of 25486736 is about 294.2872229701.

The spelling of 25486736 in words is "twenty-five million, four hundred eighty-six thousand, seven hundred thirty-six".