53906261 has 2 divisors, whose sum is σ = 53906262. Its totient is φ = 53906260.

The previous prime is 53906243. The next prime is 53906291. The reversal of 53906261 is 16260935.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52200625 + 1705636 = 7225^2 + 1306^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53906261 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53906221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26953130 + 26953131.

It is an arithmetic number, because the mean of its divisors is an integer number (26953131).

Almost surely, 2^53906261 is an apocalyptic number.

It is an amenable number.

53906261 is a deficient number, since it is larger than the sum of its proper divisors (1).

53906261 is an equidigital number, since it uses as much as digits as its factorization.

53906261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 53906261 is about 7342.0883268999. The cubic root of 53906261 is about 377.7574776641.

The spelling of 53906261 in words is "fifty-three million, nine hundred six thousand, two hundred sixty-one".