63545425 has 6 divisors (see below), whose sum is σ = 78796358. Its totient is φ = 50836320.

The previous prime is 63545423. The next prime is 63545429. The reversal of 63545425 is 52454536.

It can be written as a sum of positive squares in 3 ways, for example, as 16224784 + 47320641 = 4028^2 + 6879^2 .

It is not a de Polignac number, because 63545425 - 2¹ = 63545423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63545423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1270884 + ... + 1270933.

Almost surely, 2^63545425 is an apocalyptic number.

It is an amenable number.

63545425 is a deficient number, since it is larger than the sum of its proper divisors (15250933).

63545425 is a wasteful number, since it uses less digits than its factorization.

63545425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541827 (or 2541822 counting only the distinct ones).

The product of its digits is 72000, while the sum is 34.

The square root of 63545425 is about 7971.5384337027. The cubic root of 63545425 is about 399.0507176899.

The spelling of 63545425 in words is "sixty-three million, five hundred forty-five thousand, four hundred twenty-five".