63625247 has 4 divisors (see below), whose sum is σ = 72714576. Its totient is φ = 54535920.

The previous prime is 63625189. The next prime is 63625249. The reversal of 63625247 is 74252636.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63625247 - 2⁶ = 63625183 is a prime.

It is a super-2 number, since 2×63625247² = 8096344111622018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63625249) 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, 4544654 + ... + 4544667.

It is an arithmetic number, because the mean of its divisors is an integer number (18178644).

Almost surely, 2^63625247 is an apocalyptic number.

63625247 is a deficient number, since it is larger than the sum of its proper divisors (9089329).

63625247 is an equidigital number, since it uses as much as digits as its factorization.

63625247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9089328.

The product of its digits is 60480, while the sum is 35.

The square root of 63625247 is about 7976.5435496837. The cubic root of 63625247 is about 399.2177357372.

The spelling of 63625247 in words is "sixty-three million, six hundred twenty-five thousand, two hundred forty-seven".