47402561 has 2 divisors, whose sum is σ = 47402562. Its totient is φ = 47402560.

The previous prime is 47402527. The next prime is 47402569. The reversal of 47402561 is 16520474.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34586161 + 12816400 = 5881^2 + 3580^2 .

It is a cyclic number.

It is not a de Polignac number, because 47402561 - 2⁶ = 47402497 is a prime.

It is not a weakly prime, because it can be changed into another prime (47402569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23701280 + 23701281.

It is an arithmetic number, because the mean of its divisors is an integer number (23701281).

Almost surely, 2^47402561 is an apocalyptic number.

It is an amenable number.

47402561 is a deficient number, since it is larger than the sum of its proper divisors (1).

47402561 is an equidigital number, since it uses as much as digits as its factorization.

47402561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 47402561 is about 6884.9517790613. The cubic root of 47402561 is about 361.9100154837.

The spelling of 47402561 in words is "forty-seven million, four hundred two thousand, five hundred sixty-one".