63425453425 has 24 divisors (see below), whose sum is σ = 83287526400. Its totient is φ = 47747815680.

The previous prime is 63425453419. The next prime is 63425453447. The reversal of 63425453425 is 52435452436.

It is not a de Polignac number, because 63425453425 - 2¹⁵ = 63425420657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5076336 + ... + 5088814.

It is an arithmetic number, because the mean of its divisors is an integer number (3470313600).

Almost surely, 2^63425453425 is an apocalyptic number.

It is an amenable number.

63425453425 is a deficient number, since it is larger than the sum of its proper divisors (19862072975).

63425453425 is a wasteful number, since it uses less digits than its factorization.

63425453425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24465 (or 24460 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 43.

The spelling of 63425453425 in words is "sixty-three billion, four hundred twenty-five million, four hundred fifty-three thousand, four hundred twenty-five".