56201947 has 2 divisors, whose sum is σ = 56201948. Its totient is φ = 56201946.

The previous prime is 56201909. The next prime is 56201953. The reversal of 56201947 is 74910265.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56201947 is a prime.

It is a super-3 number, since 3×56201947³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (56204947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28100973 + 28100974.

It is an arithmetic number, because the mean of its divisors is an integer number (28100974).

Almost surely, 2^56201947 is an apocalyptic number.

56201947 is a deficient number, since it is larger than the sum of its proper divisors (1).

56201947 is an equidigital number, since it uses as much as digits as its factorization.

56201947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 56201947 is about 7496.7957821992. The cubic root of 56201947 is about 383.0455785437.

The spelling of 56201947 in words is "fifty-six million, two hundred one thousand, nine hundred forty-seven".