63120571 has 2 divisors, whose sum is σ = 63120572. Its totient is φ = 63120570.

The previous prime is 63120529. The next prime is 63120593. The reversal of 63120571 is 17502136.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63120571 - 2⁹ = 63120059 is a prime.

It is equal to p_3736015 and since 63120571 and 3736015 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (63120511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31560285 + 31560286.

It is an arithmetic number, because the mean of its divisors is an integer number (31560286).

Almost surely, 2^63120571 is an apocalyptic number.

63120571 is a deficient number, since it is larger than the sum of its proper divisors (1).

63120571 is an equidigital number, since it uses as much as digits as its factorization.

63120571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 63120571 is about 7944.8455617463. The cubic root of 63120571 is about 398.1593997173.

The spelling of 63120571 in words is "sixty-three million, one hundred twenty thousand, five hundred seventy-one".