47255431 has 2 divisors, whose sum is σ = 47255432. Its totient is φ = 47255430.

The previous prime is 47255423. The next prime is 47255447. The reversal of 47255431 is 13455274.

47255431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47255431 - 2³ = 47255423 is a prime.

It is a super-2 number, since 2×47255431² = 4466151517991522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 47255393 and 47255402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47255491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23627715 + 23627716.

It is an arithmetic number, because the mean of its divisors is an integer number (23627716).

Almost surely, 2^47255431 is an apocalyptic number.

47255431 is a deficient number, since it is larger than the sum of its proper divisors (1).

47255431 is an equidigital number, since it uses as much as digits as its factorization.

47255431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 31.

The square root of 47255431 is about 6874.2585782032. The cubic root of 47255431 is about 361.5351904000.

The spelling of 47255431 in words is "forty-seven million, two hundred fifty-five thousand, four hundred thirty-one".