47402569 has 2 divisors, whose sum is σ = 47402570. Its totient is φ = 47402568.

The previous prime is 47402561. The next prime is 47402573. The reversal of 47402569 is 96520474.

47402569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44729344 + 2673225 = 6688^2 + 1635^2 .

It is a cyclic number.

It is not a de Polignac number, because 47402569 - 2³ = 47402561 is a prime.

It is a super-2 number, since 2×47402569² = 4494007095599522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47402561) 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, 23701284 + 23701285.

It is an arithmetic number, because the mean of its divisors is an integer number (23701285).

Almost surely, 2^47402569 is an apocalyptic number.

It is an amenable number.

47402569 is a deficient number, since it is larger than the sum of its proper divisors (1).

47402569 is an equidigital number, since it uses as much as digits as its factorization.

47402569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 47402569 is about 6884.9523600385. The cubic root of 47402569 is about 361.9100358433.

The spelling of 47402569 in words is "forty-seven million, four hundred two thousand, five hundred sixty-nine".