53077481 has 2 divisors, whose sum is σ = 53077482. Its totient is φ = 53077480.

The previous prime is 53077471. The next prime is 53077483. The reversal of 53077481 is 18477035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52693081 + 384400 = 7259^2 + 620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53077481 is a prime.

It is a super-2 number, since 2×53077481² = 5634437978610722, which contains 22 as substring.

Together with 53077483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53077483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26538740 + 26538741.

It is an arithmetic number, because the mean of its divisors is an integer number (26538741).

Almost surely, 2^53077481 is an apocalyptic number.

It is an amenable number.

53077481 is a deficient number, since it is larger than the sum of its proper divisors (1).

53077481 is an equidigital number, since it uses as much as digits as its factorization.

53077481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 53077481 is about 7285.4293627761. The cubic root of 53077481 is about 375.8115308101.

The spelling of 53077481 in words is "fifty-three million, seventy-seven thousand, four hundred eighty-one".