53117767 has 2 divisors, whose sum is σ = 53117768. Its totient is φ = 53117766.

The previous prime is 53117761. The next prime is 53117789. The reversal of 53117767 is 76771135.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53117767 is a prime.

It is equal to p_3176677 and since 53117767 and 3176677 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53117761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26558883 + 26558884.

It is an arithmetic number, because the mean of its divisors is an integer number (26558884).

Almost surely, 2^53117767 is an apocalyptic number.

53117767 is a deficient number, since it is larger than the sum of its proper divisors (1).

53117767 is an equidigital number, since it uses as much as digits as its factorization.

53117767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30870, while the sum is 37.

The square root of 53117767 is about 7288.1936719602. The cubic root of 53117767 is about 375.9065875349.

The spelling of 53117767 in words is "fifty-three million, one hundred seventeen thousand, seven hundred sixty-seven".