61063657 has 2 divisors, whose sum is σ = 61063658. Its totient is φ = 61063656.

The previous prime is 61063631. The next prime is 61063679. The reversal of 61063657 is 75636016.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56836521 + 4227136 = 7539^2 + 2056^2 .

It is a cyclic number.

It is not a de Polignac number, because 61063657 - 2⁷ = 61063529 is a prime.

It is not a weakly prime, because it can be changed into another prime (61063687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30531828 + 30531829.

It is an arithmetic number, because the mean of its divisors is an integer number (30531829).

Almost surely, 2^61063657 is an apocalyptic number.

It is an amenable number.

61063657 is a deficient number, since it is larger than the sum of its proper divisors (1).

61063657 is an equidigital number, since it uses as much as digits as its factorization.

61063657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 61063657 is about 7814.3238351120. The cubic root of 61063657 is about 393.7866027282.

The spelling of 61063657 in words is "sixty-one million, sixty-three thousand, six hundred fifty-seven".