63442485 has 12 divisors (see below), whose sum is σ = 109967052. Its totient is φ = 33835968.

The previous prime is 63442481. The next prime is 63442513. The reversal of 63442485 is 58424436.

It can be written as a sum of positive squares in 2 ways, for example, as 6922161 + 56520324 = 2631^2 + 7518^2 .

It is not a de Polignac number, because 63442485 - 2² = 63442481 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63442481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 704872 + ... + 704961.

It is an arithmetic number, because the mean of its divisors is an integer number (9163921).

Almost surely, 2^63442485 is an apocalyptic number.

It is an amenable number.

63442485 is a deficient number, since it is larger than the sum of its proper divisors (46524567).

63442485 is a wasteful number, since it uses less digits than its factorization.

63442485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409844 (or 1409841 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 63442485 is about 7965.0790956525. The cubic root of 63442485 is about 398.8351213541.

The spelling of 63442485 in words is "sixty-three million, four hundred forty-two thousand, four hundred eighty-five".