63516223253 has 8 divisors (see below), whose sum is σ = 74278108608. Its totient is φ = 53176372704.

The previous prime is 63516223231. The next prime is 63516223279. The reversal of 63516223253 is 35232261536.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63516223253 - 2²⁶ = 63449114389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63516223213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105508376 + ... + 105508977.

It is an arithmetic number, because the mean of its divisors is an integer number (9284763576).

Almost surely, 2^63516223253 is an apocalyptic number.

It is an amenable number.

63516223253 is a deficient number, since it is larger than the sum of its proper divisors (10761885355).

63516223253 is a wasteful number, since it uses less digits than its factorization.

63516223253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211017403.

The product of its digits is 194400, while the sum is 38.

Adding to 63516223253 its reverse (35232261536), we get a palindrome (98748484789).

The spelling of 63516223253 in words is "sixty-three billion, five hundred sixteen million, two hundred twenty-three thousand, two hundred fifty-three".