25224750 has 128 divisors (see below), whose sum is σ = 72558720. Its totient is φ = 6480000.

The previous prime is 25224743. The next prime is 25224757. The reversal of 25224750 is 5742252.

It is an interprime number because it is at equal distance from previous prime (25224743) and next prime (25224757).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25224757) 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 63 ways as a sum of consecutive naturals, for example, 249700 + ... + 249800.

It is an arithmetic number, because the mean of its divisors is an integer number (566865).

Almost surely, 2^25224750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25224750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36279360).

25224750 is an abundant number, since it is smaller than the sum of its proper divisors (47333970).

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

25224750 is a wasteful number, since it uses less digits than its factorization.

25224750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 25224750 is about 5022.4247132237. The cubic root of 25224750 is about 293.2753917352.

The spelling of 25224750 in words is "twenty-five million, two hundred twenty-four thousand, seven hundred fifty".