63541501 has 2 divisors, whose sum is σ = 63541502. Its totient is φ = 63541500.

The previous prime is 63541493. The next prime is 63541519. The reversal of 63541501 is 10514536.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61246276 + 2295225 = 7826^2 + 1515^2 .

It is a cyclic number.

It is not a de Polignac number, because 63541501 - 2³ = 63541493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63541591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31770750 + 31770751.

It is an arithmetic number, because the mean of its divisors is an integer number (31770751).

Almost surely, 2^63541501 is an apocalyptic number.

It is an amenable number.

63541501 is a deficient number, since it is larger than the sum of its proper divisors (1).

63541501 is an equidigital number, since it uses as much as digits as its factorization.

63541501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 63541501 is about 7971.2923042628. The cubic root of 63541501 is about 399.0425035803.

The spelling of 63541501 in words is "sixty-three million, five hundred forty-one thousand, five hundred one".