51868607 has 6 divisors (see below), whose sum is σ = 60337008. Its totient is φ = 44458764.

The previous prime is 51868603. The next prime is 51868633. The reversal of 51868607 is 70686815.

It is not a de Polignac number, because 51868607 - 2² = 51868603 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 (51868601) 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, 529223 + ... + 529320.

It is an arithmetic number, because the mean of its divisors is an integer number (10056168).

Almost surely, 2^51868607 is an apocalyptic number.

51868607 is a deficient number, since it is larger than the sum of its proper divisors (8468401).

51868607 is a wasteful number, since it uses less digits than its factorization.

51868607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058557 (or 1058550 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 51868607 is about 7201.9863232306. The cubic root of 51868607 is about 372.9364749851.

The spelling of 51868607 in words is "fifty-one million, eight hundred sixty-eight thousand, six hundred seven".