63257860 has 12 divisors (see below), whose sum is σ = 132841548. Its totient is φ = 25303136.

The previous prime is 63257851. The next prime is 63257861. The reversal of 63257860 is 6875236.

It can be written as a sum of positive squares in 2 ways, for example, as 19061956 + 44195904 = 4366^2 + 6648^2 .

It is not an unprimeable number, because it can be changed into a prime (63257861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1581427 + ... + 1581466.

It is an arithmetic number, because the mean of its divisors is an integer number (11070129).

Almost surely, 2^63257860 is an apocalyptic number.

It is an amenable number.

63257860 is an abundant number, since it is smaller than the sum of its proper divisors (69583688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63257860 is a wasteful number, since it uses less digits than its factorization.

63257860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162902 (or 3162900 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 63257860 is about 7953.4809989086. The cubic root of 63257860 is about 398.4478599434.

The spelling of 63257860 in words is "sixty-three million, two hundred fifty-seven thousand, eight hundred sixty".