63685245 has 32 divisors (see below), whose sum is σ = 115516800. Its totient is φ = 29700864.

The previous prime is 63685231. The next prime is 63685301. The reversal of 63685245 is 54258636.

It is not a de Polignac number, because 63685245 - 2⁷ = 63685117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

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 31 ways as a sum of consecutive naturals, for example, 4890 + ... + 12299.

It is an arithmetic number, because the mean of its divisors is an integer number (3609900).

Almost surely, 2^63685245 is an apocalyptic number.

63685245 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

63685245 is a deficient number, since it is larger than the sum of its proper divisors (51831555).

63685245 is a wasteful number, since it uses less digits than its factorization.

63685245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17229.

The product of its digits is 172800, while the sum is 39.

The square root of 63685245 is about 7980.3035656546. The cubic root of 63685245 is about 399.3431824839.

The spelling of 63685245 in words is "sixty-three million, six hundred eighty-five thousand, two hundred forty-five".