25225464 has 128 divisors (see below), whose sum is σ = 74649600. Its totient is φ = 7021440.

The previous prime is 25225463. The next prime is 25225469. The reversal of 25225464 is 46452252.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25225463) 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 31 ways as a sum of consecutive naturals, for example, 235699 + ... + 235805.

It is an arithmetic number, because the mean of its divisors is an integer number (583200).

Almost surely, 2^25225464 is an apocalyptic number.

25225464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25225464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37324800).

25225464 is an abundant number, since it is smaller than the sum of its proper divisors (49424136).

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

25225464 is a wasteful number, since it uses less digits than its factorization.

25225464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 189 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 25225464 is about 5022.4957939256. The cubic root of 25225464 is about 293.2781588145.

The spelling of 25225464 in words is "twenty-five million, two hundred twenty-five thousand, four hundred sixty-four".