25275000 has 96 divisors (see below), whose sum is σ = 79213680. Its totient is φ = 6720000.

The previous prime is 25274981. The next prime is 25275001. The reversal of 25275000 is 57252.

25275000 = 88² + 89² + ... + 424².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25275001) 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 23 ways as a sum of consecutive naturals, for example, 74832 + ... + 75168.

Almost surely, 2^25275000 is an apocalyptic number.

25275000 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 25275000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39606840).

25275000 is an abundant number, since it is smaller than the sum of its proper divisors (53938680).

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

25275000 is an equidigital number, since it uses as much as digits as its factorization.

25275000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 347 counting only the distinct ones).

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

The square root of 25275000 is about 5027.4247880998. The cubic root of 25275000 is about 293.4700063283.

The spelling of 25275000 in words is "twenty-five million, two hundred seventy-five thousand".