47566451 has 2 divisors, whose sum is σ = 47566452. Its totient is φ = 47566450.

The previous prime is 47566439. The next prime is 47566457. The reversal of 47566451 is 15466574.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47566451 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (47566457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23783225 + 23783226.

It is an arithmetic number, because the mean of its divisors is an integer number (23783226).

Almost surely, 2^47566451 is an apocalyptic number.

47566451 is a deficient number, since it is larger than the sum of its proper divisors (1).

47566451 is an equidigital number, since it uses as much as digits as its factorization.

47566451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 38.

The square root of 47566451 is about 6896.8435533946. The cubic root of 47566451 is about 362.3266259317.

The spelling of 47566451 in words is "forty-seven million, five hundred sixty-six thousand, four hundred fifty-one".