25030000 has 50 divisors (see below), whose sum is σ = 60624344. Its totient is φ = 10008000.

The previous prime is 25029959. The next prime is 25030013. The reversal of 25030000 is 3052.

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8749 + ... + 11251.

Almost surely, 2^25030000 is an apocalyptic number.

25030000 is a gapful number since it is divisible by the number (20) 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 25030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30312172).

25030000 is an abundant number, since it is smaller than the sum of its proper divisors (35594344).

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

25030000 is an equidigital number, since it uses as much as digits as its factorization.

25030000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531 (or 2510 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 10.

The square root of 25030000 is about 5002.9991005396. Note that the first 3 decimals coincide. The cubic root of 25030000 is about 292.5186877777.

Adding to 25030000 its reverse (3052), we get a palindrome (25033052).

The spelling of 25030000 in words is "twenty-five million, thirty thousand".