51430667 has 2 divisors, whose sum is σ = 51430668. Its totient is φ = 51430666.

The previous prime is 51430657. The next prime is 51430693. The reversal of 51430667 is 76603415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51430667 - 2⁸ = 51430411 is a prime.

It is a super-2 number, since 2×51430667² = 5290227016129778, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51430637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25715333 + 25715334.

It is an arithmetic number, because the mean of its divisors is an integer number (25715334).

Almost surely, 2^51430667 is an apocalyptic number.

51430667 is a deficient number, since it is larger than the sum of its proper divisors (1).

51430667 is an equidigital number, since it uses as much as digits as its factorization.

51430667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 51430667 is about 7171.5177612553. The cubic root of 51430667 is about 371.8839074862.

The spelling of 51430667 in words is "fifty-one million, four hundred thirty thousand, six hundred sixty-seven".