647725054 has 8 divisors (see below), whose sum is σ = 971765928. Its totient is φ = 323803080.

The previous prime is 647725051. The next prime is 647725073. The reversal of 647725054 is 450527746.

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

It is a junction number, because it is equal to n+sod(n) for n = 647724998 and 647725016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647725051) 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, 14557 + ... + 38824.

It is an arithmetic number, because the mean of its divisors is an integer number (121470741).

Almost surely, 2^647725054 is an apocalyptic number.

647725054 is a deficient number, since it is larger than the sum of its proper divisors (324040874).

647725054 is a wasteful number, since it uses less digits than its factorization.

647725054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59450.

The product of its (nonzero) digits is 235200, while the sum is 40.

The square root of 647725054 is about 25450.4431002684. The cubic root of 647725054 is about 865.2273357500.

The spelling of 647725054 in words is "six hundred forty-seven million, seven hundred twenty-five thousand, fifty-four".