53896561 has 2 divisors, whose sum is σ = 53896562. Its totient is φ = 53896560.

The previous prime is 53896547. The next prime is 53896573. The reversal of 53896561 is 16569835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53012961 + 883600 = 7281^2 + 940^2 .

It is a cyclic number.

It is not a de Polignac number, because 53896561 - 2⁷ = 53896433 is a prime.

It is not a weakly prime, because it can be changed into another prime (53896541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26948280 + 26948281.

It is an arithmetic number, because the mean of its divisors is an integer number (26948281).

Almost surely, 2^53896561 is an apocalyptic number.

It is an amenable number.

53896561 is a deficient number, since it is larger than the sum of its proper divisors (1).

53896561 is an equidigital number, since it uses as much as digits as its factorization.

53896561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 43.

The square root of 53896561 is about 7341.4277221805. The cubic root of 53896561 is about 377.7348181606.

The spelling of 53896561 in words is "fifty-three million, eight hundred ninety-six thousand, five hundred sixty-one".