647373055 has 16 divisors (see below), whose sum is σ = 905947200. Its totient is φ = 443911776.

The previous prime is 647373029. The next prime is 647373071. The reversal of 647373055 is 550373746.

It is not a de Polignac number, because 647373055 - 2¹³ = 647364863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 647372999 and 647373017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187024 + ... + 190453.

It is an arithmetic number, because the mean of its divisors is an integer number (56621700).

Almost surely, 2^647373055 is an apocalyptic number.

647373055 is a deficient number, since it is larger than the sum of its proper divisors (258574145).

647373055 is an equidigital number, since it uses as much as digits as its factorization.

647373055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377503 (or 377489 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 40.

The square root of 647373055 is about 25443.5267799101. The cubic root of 647373055 is about 865.0705746153.

The spelling of 647373055 in words is "six hundred forty-seven million, three hundred seventy-three thousand, fifty-five".