63251625999 has 4 divisors (see below), whose sum is σ = 84335501336. Its totient is φ = 42167750664.

The previous prime is 63251625971. The next prime is 63251626007. The reversal of 63251625999 is 99952615236.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 63251625999 - 2⁵ = 63251625967 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 (63251625919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10541937664 + ... + 10541937669.

It is an arithmetic number, because the mean of its divisors is an integer number (21083875334).

Almost surely, 2^63251625999 is an apocalyptic number.

63251625999 is a deficient number, since it is larger than the sum of its proper divisors (21083875337).

63251625999 is a wasteful number, since it uses less digits than its factorization.

63251625999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21083875336.

The product of its digits is 7873200, while the sum is 57.

The spelling of 63251625999 in words is "sixty-three billion, two hundred fifty-one million, six hundred twenty-five thousand, nine hundred ninety-nine".