63553250473 has 4 divisors (see below), whose sum is σ = 63574877520. Its totient is φ = 63531623428.

The previous prime is 63553250437. The next prime is 63553250477. The reversal of 63553250473 is 37405235536.

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 63553250473 - 2²¹ = 63551153321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63553250477) 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, 10809115 + ... + 10814992.

It is an arithmetic number, because the mean of its divisors is an integer number (15893719380).

Almost surely, 2^63553250473 is an apocalyptic number.

It is an amenable number.

63553250473 is a deficient number, since it is larger than the sum of its proper divisors (21627047).

63553250473 is a wasteful number, since it uses less digits than its factorization.

63553250473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21627046.

The product of its (nonzero) digits is 1134000, while the sum is 43.

The spelling of 63553250473 in words is "sixty-three billion, five hundred fifty-three million, two hundred fifty thousand, four hundred seventy-three".