51560647 has 6 divisors (see below), whose sum is σ = 52993248. Its totient is φ = 50165784.

The previous prime is 51560633. The next prime is 51560651. The reversal of 51560647 is 74606515.

It is a happy number.

It is not a de Polignac number, because 51560647 - 2⁷ = 51560519 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 (51560147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17463 + ... + 20200.

It is an arithmetic number, because the mean of its divisors is an integer number (8832208).

Almost surely, 2^51560647 is an apocalyptic number.

51560647 is a deficient number, since it is larger than the sum of its proper divisors (1432601).

51560647 is an equidigital number, since it uses as much as digits as its factorization.

51560647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37737 (or 37700 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 51560647 is about 7180.5742806547. The cubic root of 51560647 is about 372.1969295884.

The spelling of 51560647 in words is "fifty-one million, five hundred sixty thousand, six hundred forty-seven".