53385481 has 2 divisors, whose sum is σ = 53385482. Its totient is φ = 53385480.

The previous prime is 53385463. The next prime is 53385499. The reversal of 53385481 is 18458335.

It is a balanced prime because it is at equal distance from previous prime (53385463) and next prime (53385499).

It can be written as a sum of positive squares in only one way, i.e., 53290000 + 95481 = 7300^2 + 309^2 .

It is a cyclic number.

It is not a de Polignac number, because 53385481 - 2²¹ = 51288329 is a prime.

It is a super-2 number, since 2×53385481² = 5700019163202722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53385481.

It is not a weakly prime, because it can be changed into another prime (53385401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26692740 + 26692741.

It is an arithmetic number, because the mean of its divisors is an integer number (26692741).

Almost surely, 2^53385481 is an apocalyptic number.

It is an amenable number.

53385481 is a deficient number, since it is larger than the sum of its proper divisors (1).

53385481 is an equidigital number, since it uses as much as digits as its factorization.

53385481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 37.

The square root of 53385481 is about 7306.5368677644. The cubic root of 53385481 is about 376.5370536721.

The spelling of 53385481 in words is "fifty-three million, three hundred eighty-five thousand, four hundred eighty-one".