651054605 has 6 divisors (see below), whose sum is σ = 781333998. Its totient is φ = 520798040.

The previous prime is 651054601. The next prime is 651054617. The reversal of 651054605 is 506450156.

651054605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 520843684 + 130210921 = 22822^2 + 11411^2 .

It is not a de Polignac number, because 651054605 - 2² = 651054601 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 (651054601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51350 + ... + 62760.

It is an arithmetic number, because the mean of its divisors is an integer number (130222333).

Almost surely, 2^651054605 is an apocalyptic number.

It is an amenable number.

651054605 is a deficient number, since it is larger than the sum of its proper divisors (130279393).

651054605 is an frugal number, since it uses more digits than its factorization.

651054605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22827 (or 11416 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 651054605 is about 25515.7716912501. The cubic root of 651054605 is about 866.7073343014.

Multiplying 651054605 by its product of nonzero digits (18000), we get a square (11718982890000 = 3423300²).

The spelling of 651054605 in words is "six hundred fifty-one million, fifty-four thousand, six hundred five".