25321000 has 32 divisors (see below), whose sum is σ = 59253480. Its totient is φ = 10128000.

The previous prime is 25320991. The next prime is 25321013. The reversal of 25321000 is 12352.

It can be written as a sum of positive squares in 4 ways, for example, as 11437924 + 13883076 = 3382^2 + 3726^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11661 + ... + 13660.

Almost surely, 2^25321000 is an apocalyptic number.

25321000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25321000 is an abundant number, since it is smaller than the sum of its proper divisors (33932480).

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

25321000 is a wasteful number, since it uses less digits than its factorization.

25321000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25342 (or 25328 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 25321000 is about 5031.9976152618. The cubic root of 25321000 is about 293.6479349651.

Adding to 25321000 its reverse (12352), we get a palindrome (25333352).

The spelling of 25321000 in words is "twenty-five million, three hundred twenty-one thousand".