54947807 has 2 divisors, whose sum is σ = 54947808. Its totient is φ = 54947806.

The previous prime is 54947771. The next prime is 54947833. The reversal of 54947807 is 70874945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54947807 - 2¹⁰ = 54946783 is a prime.

It is a super-2 number, since 2×54947807² = 6038522988218498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54947857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27473903 + 27473904.

It is an arithmetic number, because the mean of its divisors is an integer number (27473904).

Almost surely, 2^54947807 is an apocalyptic number.

54947807 is a deficient number, since it is larger than the sum of its proper divisors (1).

54947807 is an equidigital number, since it uses as much as digits as its factorization.

54947807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 54947807 is about 7412.6788005417. The cubic root of 54947807 is about 380.1749125509.

The spelling of 54947807 in words is "fifty-four million, nine hundred forty-seven thousand, eight hundred seven".