25320000 has 140 divisors (see below), whose sum is σ = 84110576. Its totient is φ = 6720000.

The previous prime is 25319971. The next prime is 25320011. The reversal of 25320000 is 2352.

It is a super-2 number, since 2×25320000² = 1282204800000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 119895 + ... + 120105.

Almost surely, 2^25320000 is an apocalyptic number.

25320000 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 25320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42055288).

25320000 is an abundant number, since it is smaller than the sum of its proper divisors (58790576).

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

25320000 is an equidigital number, since it uses as much as digits as its factorization.

25320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 221 counting only the distinct ones).

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

The square root of 25320000 is about 5031.8982501636. The cubic root of 25320000 is about 293.6440692436.

Adding to 25320000 its reverse (2352), we get a palindrome (25322352).

It can be divided in two parts, 25 and 320000, that multiplied together give a cube (8000000 = 200³).

The spelling of 25320000 in words is "twenty-five million, three hundred twenty thousand".