63557245 has 8 divisors (see below), whose sum is σ = 76691160. Its totient is φ = 50564160.

The previous prime is 63557239. The next prime is 63557269. The reversal of 63557245 is 54275536.

It can be written as a sum of positive squares in 4 ways, for example, as 8173881 + 55383364 = 2859^2 + 7442^2 .

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

It is not a de Polignac number, because 63557245 - 2¹⁵ = 63524477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34210 + ... + 36019.

It is an arithmetic number, because the mean of its divisors is an integer number (9586395).

Almost surely, 2^63557245 is an apocalyptic number.

It is an amenable number.

63557245 is a deficient number, since it is larger than the sum of its proper divisors (13133915).

63557245 is a wasteful number, since it uses less digits than its factorization.

63557245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70415.

The product of its digits is 126000, while the sum is 37.

The square root of 63557245 is about 7972.2797868615. The cubic root of 63557245 is about 399.0754584537.

The spelling of 63557245 in words is "sixty-three million, five hundred fifty-seven thousand, two hundred forty-five".