51607187 has 2 divisors, whose sum is σ = 51607188. Its totient is φ = 51607186.

The previous prime is 51607177. The next prime is 51607207. The reversal of 51607187 is 78170615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51607187 - 2¹² = 51603091 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51607117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25803593 + 25803594.

It is an arithmetic number, because the mean of its divisors is an integer number (25803594).

Almost surely, 2^51607187 is an apocalyptic number.

51607187 is a deficient number, since it is larger than the sum of its proper divisors (1).

51607187 is an equidigital number, since it uses as much as digits as its factorization.

51607187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 35.

The square root of 51607187 is about 7183.8142375760. The cubic root of 51607187 is about 372.3088808338.

The spelling of 51607187 in words is "fifty-one million, six hundred seven thousand, one hundred eighty-seven".