63520049 has 4 divisors (see below), whose sum is σ = 64596720. Its totient is φ = 62443380.

The previous prime is 63520031. The next prime is 63520069. The reversal of 63520049 is 94002536.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63520049 - 2²⁴ = 46742833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63520069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538247 + ... + 538364.

It is an arithmetic number, because the mean of its divisors is an integer number (16149180).

Almost surely, 2^63520049 is an apocalyptic number.

It is an amenable number.

63520049 is a deficient number, since it is larger than the sum of its proper divisors (1076671).

63520049 is a wasteful number, since it uses less digits than its factorization.

63520049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076670.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 63520049 is about 7969.9466121173. The cubic root of 63520049 is about 398.9975921279.

The spelling of 63520049 in words is "sixty-three million, five hundred twenty thousand, forty-nine".