48166561 has 2 divisors, whose sum is σ = 48166562. Its totient is φ = 48166560.

The previous prime is 48166553. The next prime is 48166567. The reversal of 48166561 is 16566184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30735936 + 17430625 = 5544^2 + 4175^2 .

It is a cyclic number.

It is not a de Polignac number, because 48166561 - 2³ = 48166553 is a prime.

It is equal to p_2897524 and since 48166561 and 2897524 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 48166561.

It is not a weakly prime, because it can be changed into another prime (48166567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24083280 + 24083281.

It is an arithmetic number, because the mean of its divisors is an integer number (24083281).

Almost surely, 2^48166561 is an apocalyptic number.

It is an amenable number.

48166561 is a deficient number, since it is larger than the sum of its proper divisors (1).

48166561 is an equidigital number, since it uses as much as digits as its factorization.

48166561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 37.

The square root of 48166561 is about 6940.2133252516. The cubic root of 48166561 is about 363.8439963663.

The spelling of 48166561 in words is "forty-eight million, one hundred sixty-six thousand, five hundred sixty-one".