47825881 has 2 divisors, whose sum is σ = 47825882. Its totient is φ = 47825880.

The previous prime is 47825861. The next prime is 47825923. The reversal of 47825881 is 18852874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40208281 + 7617600 = 6341^2 + 2760^2 .

It is a cyclic number.

It is not a de Polignac number, because 47825881 - 2¹³ = 47817689 is a prime.

It is a super-2 number, since 2×47825881² = 4574629786852322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47825801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23912940 + 23912941.

It is an arithmetic number, because the mean of its divisors is an integer number (23912941).

Almost surely, 2^47825881 is an apocalyptic number.

It is an amenable number.

47825881 is a deficient number, since it is larger than the sum of its proper divisors (1).

47825881 is an equidigital number, since it uses as much as digits as its factorization.

47825881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 143360, while the sum is 43.

The square root of 47825881 is about 6915.6258574333. The cubic root of 47825881 is about 362.9841483363.

The spelling of 47825881 in words is "forty-seven million, eight hundred twenty-five thousand, eight hundred eighty-one".