25247964 has 48 divisors (see below), whose sum is σ = 68979456. Its totient is φ = 7036800.

The previous prime is 25247939. The next prime is 25247969. The reversal of 25247964 is 46974252.

It is a super-2 number, since 2×25247964² = 1274919372290592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25247969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222 + ... + 7109.

It is an arithmetic number, because the mean of its divisors is an integer number (1437072).

Almost surely, 2^25247964 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 25247964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34489728).

25247964 is an abundant number, since it is smaller than the sum of its proper divisors (43731492).

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

25247964 is a wasteful number, since it uses less digits than its factorization.

25247964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7386 (or 7384 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 25247964 is about 5024.7352169045. The cubic root of 25247964 is about 293.3653299578.

The spelling of 25247964 in words is "twenty-five million, two hundred forty-seven thousand, nine hundred sixty-four".