25063500 has 288 divisors, whose sum is σ = 95606784. Its totient is φ = 5040000.

The previous prime is 25063499. The next prime is 25063501. The reversal of 25063500 is 536052.

It is an interprime number because it is at equal distance from previous prime (25063499) and next prime (25063501).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25063501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 808485 + ... + 808515.

It is an arithmetic number, because the mean of its divisors is an integer number (331968).

Almost surely, 2^25063500 is an apocalyptic number.

25063500 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 25063500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47803392).

25063500 is an abundant number, since it is smaller than the sum of its proper divisors (70543284).

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

25063500 is a wasteful number, since it uses less digits than its factorization.

25063500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 25063500 is about 5006.3459728628. The cubic root of 25063500 is about 292.6491313451.

Adding to 25063500 its reverse (536052), we get a palindrome (25599552).

It can be divided in two parts, 2506 and 3500, that added together give a palindrome (6006).

The spelling of 25063500 in words is "twenty-five million, sixty-three thousand, five hundred".