25020030 has 64 divisors (see below), whose sum is σ = 69032448. Its totient is φ = 5685120.

The previous prime is 25020019. The next prime is 25020031. The reversal of 25020030 is 3002052.

It is a junction number, because it is equal to n+sod(n) for n = 25019988 and 25020015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25020031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59220 + ... + 59640.

It is an arithmetic number, because the mean of its divisors is an integer number (1078632).

Almost surely, 2^25020030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25020030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34516224).

25020030 is an abundant number, since it is smaller than the sum of its proper divisors (44012418).

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

25020030 is a wasteful number, since it uses less digits than its factorization.

25020030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721.

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 25020030 is about 5002.0025989597. The cubic root of 25020030 is about 292.4798437422.

Adding to 25020030 its reverse (3002052), we get a palindrome (28022082).

The spelling of 25020030 in words is "twenty-five million, twenty thousand, thirty".