51466507 has 2 divisors, whose sum is σ = 51466508. Its totient is φ = 51466506.

The previous prime is 51466477. The next prime is 51466523. The reversal of 51466507 is 70566415.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51466507 - 2²³ = 43077899 is a prime.

It is not a weakly prime, because it can be changed into another prime (51466567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25733253 + 25733254.

It is an arithmetic number, because the mean of its divisors is an integer number (25733254).

Almost surely, 2^51466507 is an apocalyptic number.

51466507 is a deficient number, since it is larger than the sum of its proper divisors (1).

51466507 is an equidigital number, since it uses as much as digits as its factorization.

51466507 is an evil number, because the sum of its binary digits is even.

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

The square root of 51466507 is about 7174.0160997868. The cubic root of 51466507 is about 371.9702711626.

It can be divided in two parts, 5 and 1466507, that multiplied together give a triangular number (7332535 = T₃₈₂₉).

The spelling of 51466507 in words is "fifty-one million, four hundred sixty-six thousand, five hundred seven".