63321225 has 24 divisors (see below), whose sum is σ = 114209952. Its totient is φ = 30700800.

The previous prime is 63321217. The next prime is 63321253. The reversal of 63321225 is 52212336.

It is not a de Polignac number, because 63321225 - 2³ = 63321217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63321195 and 63321204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37552 + ... + 39201.

It is an arithmetic number, because the mean of its divisors is an integer number (4758748).

Almost surely, 2^63321225 is an apocalyptic number.

It is an amenable number.

63321225 is a deficient number, since it is larger than the sum of its proper divisors (50888727).

63321225 is a wasteful number, since it uses less digits than its factorization.

63321225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76777 (or 76772 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 63321225 is about 7957.4634777673. The cubic root of 63321225 is about 398.5808564500.

Subtracting from 63321225 its reverse (52212336), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 63321 and 225, that added together give a triangular number (63546 = T₃₅₆).

The spelling of 63321225 in words is "sixty-three million, three hundred twenty-one thousand, two hundred twenty-five".