51496147 has 2 divisors, whose sum is σ = 51496148. Its totient is φ = 51496146.

The previous prime is 51496121. The next prime is 51496169. The reversal of 51496147 is 74169415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51496147 - 2²³ = 43107539 is a prime.

It is not a weakly prime, because it can be changed into another prime (51496187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25748073 + 25748074.

It is an arithmetic number, because the mean of its divisors is an integer number (25748074).

Almost surely, 2^51496147 is an apocalyptic number.

51496147 is a deficient number, since it is larger than the sum of its proper divisors (1).

51496147 is an equidigital number, since it uses as much as digits as its factorization.

51496147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 37.

The square root of 51496147 is about 7176.0815909520. The cubic root of 51496147 is about 372.0416644088.

The spelling of 51496147 in words is "fifty-one million, four hundred ninety-six thousand, one hundred forty-seven".