63625537 has 2 divisors, whose sum is σ = 63625538. Its totient is φ = 63625536.

The previous prime is 63625487. The next prime is 63625561. The reversal of 63625537 is 73552636.

It is a happy number.

63625537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58920976 + 4704561 = 7676^2 + 2169^2 .

It is a cyclic number.

It is not a de Polignac number, because 63625537 - 2⁷ = 63625409 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 63625496 and 63625505.

It is not a weakly prime, because it can be changed into another prime (63625637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31812768 + 31812769.

It is an arithmetic number, because the mean of its divisors is an integer number (31812769).

Almost surely, 2^63625537 is an apocalyptic number.

It is an amenable number.

63625537 is a deficient number, since it is larger than the sum of its proper divisors (1).

63625537 is an equidigital number, since it uses as much as digits as its factorization.

63625537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 37.

The square root of 63625537 is about 7976.5617279627. The cubic root of 63625537 is about 399.2183422730.

The spelling of 63625537 in words is "sixty-three million, six hundred twenty-five thousand, five hundred thirty-seven".