53863261 has 2 divisors, whose sum is σ = 53863262. Its totient is φ = 53863260.

The previous prime is 53863253. The next prime is 53863267. The reversal of 53863261 is 16236835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35928036 + 17935225 = 5994^2 + 4235^2 .

It is a cyclic number.

It is not a de Polignac number, because 53863261 - 2³ = 53863253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53863267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26931630 + 26931631.

It is an arithmetic number, because the mean of its divisors is an integer number (26931631).

Almost surely, 2^53863261 is an apocalyptic number.

It is an amenable number.

53863261 is a deficient number, since it is larger than the sum of its proper divisors (1).

53863261 is an equidigital number, since it uses as much as digits as its factorization.

53863261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 53863261 is about 7339.1594205331. The cubic root of 53863261 is about 377.6570076246.

The spelling of 53863261 in words is "fifty-three million, eight hundred sixty-three thousand, two hundred sixty-one".