63625445 has 8 divisors (see below), whose sum is σ = 82223736. Its totient is φ = 46984896.

The previous prime is 63625439. The next prime is 63625483. The reversal of 63625445 is 54452636.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 407044 + 63218401 = 638^2 + 7951^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63625445 - 2⁶ = 63625381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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, 489362 + ... + 489491.

It is an arithmetic number, because the mean of its divisors is an integer number (10277967).

Almost surely, 2^63625445 is an apocalyptic number.

63625445 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

63625445 is a deficient number, since it is larger than the sum of its proper divisors (18598291).

63625445 is a wasteful number, since it uses less digits than its factorization.

63625445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978871.

The product of its digits is 86400, while the sum is 35.

The square root of 63625445 is about 7976.5559610649. Note that the first 3 decimals coincide. The cubic root of 63625445 is about 399.2181498549.

The spelling of 63625445 in words is "sixty-three million, six hundred twenty-five thousand, four hundred forty-five".