325220250400 has 36 divisors (see below), whose sum is σ = 793943938242. Its totient is φ = 130088099840.

The previous prime is 325220250373. The next prime is 325220250403. The reversal of 325220250400 is 4052022523.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 211000585104 + 114219665296 = 459348^2 + 337964^2 .

It is a super-2 number, since 2×325220250400² (a number of 24 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (325220250403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 203261857 + ... + 203263456.

Almost surely, 2^325220250400 is an apocalyptic number.

It is an amenable number.

325220250400 is an abundant number, since it is smaller than the sum of its proper divisors (468723687842).

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

325220250400 is a wasteful number, since it uses less digits than its factorization.

325220250400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406525333 (or 406525320 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 325220250400 its reverse (4052022523), we get a palindrome (329272272923).

The spelling of 325220250400 in words is "three hundred twenty-five billion, two hundred twenty million, two hundred fifty thousand, four hundred".