25270500 has 96 divisors (see below), whose sum is σ = 77995008. Its totient is φ = 6336000.

The previous prime is 25270499. The next prime is 25270501. The reversal of 25270500 is 507252.

25270500 = 328² + 329² + ... + 480².

It is an interprime number because it is at equal distance from previous prime (25270499) and next prime (25270501).

It is not an unprimeable number, because it can be changed into a prime (25270501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25005 + ... + 25995.

It is an arithmetic number, because the mean of its divisors is an integer number (812448).

Almost surely, 2^25270500 is an apocalyptic number.

25270500 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 25270500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38997504).

25270500 is an abundant number, since it is smaller than the sum of its proper divisors (52724508).

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

25270500 is a wasteful number, since it uses less digits than its factorization.

25270500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 25270500 is about 5026.9772229442. The cubic root of 25270500 is about 293.4525886770.

Adding to 25270500 its reverse (507252), we get a palindrome (25777752).

The spelling of 25270500 in words is "twenty-five million, two hundred seventy thousand, five hundred".