63519461 has 2 divisors, whose sum is σ = 63519462. Its totient is φ = 63519460.

The previous prime is 63519457. The next prime is 63519479. The reversal of 63519461 is 16491536.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32092225 + 31427236 = 5665^2 + 5606^2 .

It is a cyclic number.

It is not a de Polignac number, because 63519461 - 2² = 63519457 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63519161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31759730 + 31759731.

It is an arithmetic number, because the mean of its divisors is an integer number (31759731).

Almost surely, 2^63519461 is an apocalyptic number.

It is an amenable number.

63519461 is a deficient number, since it is larger than the sum of its proper divisors (1).

63519461 is an equidigital number, since it uses as much as digits as its factorization.

63519461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 35.

The square root of 63519461 is about 7969.9097234536. The cubic root of 63519461 is about 398.9963609612.

The spelling of 63519461 in words is "sixty-three million, five hundred nineteen thousand, four hundred sixty-one".