53557417 has 2 divisors, whose sum is σ = 53557418. Its totient is φ = 53557416.

The previous prime is 53557391. The next prime is 53557421. The reversal of 53557417 is 71475535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52186176 + 1371241 = 7224^2 + 1171^2 .

It is a cyclic number.

It is not a de Polignac number, because 53557417 - 2¹⁵ = 53524649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53557457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26778708 + 26778709.

It is an arithmetic number, because the mean of its divisors is an integer number (26778709).

Almost surely, 2^53557417 is an apocalyptic number.

It is an amenable number.

53557417 is a deficient number, since it is larger than the sum of its proper divisors (1).

53557417 is an equidigital number, since it uses as much as digits as its factorization.

53557417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73500, while the sum is 37.

The square root of 53557417 is about 7318.2933119683. The cubic root of 53557417 is about 376.9408519571.

The spelling of 53557417 in words is "fifty-three million, five hundred fifty-seven thousand, four hundred seventeen".