25495000 has 40 divisors (see below), whose sum is σ = 59746500. Its totient is φ = 10196000.

The previous prime is 25494983. The next prime is 25495007. The reversal of 25495000 is 59452.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25495007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2451 + ... + 7549.

Almost surely, 2^25495000 is an apocalyptic number.

25495000 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 25495000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29873250).

25495000 is an abundant number, since it is smaller than the sum of its proper divisors (34251500).

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

25495000 is an equidigital number, since it uses as much as digits as its factorization.

25495000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5125 (or 5106 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 25495000 is about 5049.2573711388. The cubic root of 25495000 is about 294.3190267915.

The spelling of 25495000 in words is "twenty-five million, four hundred ninety-five thousand".