325551630 has 16 divisors (see below), whose sum is σ = 781323984. Its totient is φ = 86813760.

The previous prime is 325551617. The next prime is 325551631. The reversal of 325551630 is 36155523.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 10851721 = 325551630 / (3 + 2 + 5 + 5 + 5 + 1 + 6 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325551631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5425831 + ... + 5425890.

It is an arithmetic number, because the mean of its divisors is an integer number (48832749).

Almost surely, 2^325551630 is an apocalyptic number.

325551630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

325551630 is an abundant number, since it is smaller than the sum of its proper divisors (455772354).

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

325551630 is a wasteful number, since it uses less digits than its factorization.

325551630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10851731.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 325551630 is about 18043.0493542527. The cubic root of 325551630 is about 687.9232030176.

The spelling of 325551630 in words is "three hundred twenty-five million, five hundred fifty-one thousand, six hundred thirty".