53156497 has 2 divisors, whose sum is σ = 53156498. Its totient is φ = 53156496.

The previous prime is 53156479. The next prime is 53156513. The reversal of 53156497 is 79465135.

Together with previous prime (53156479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51494976 + 1661521 = 7176^2 + 1289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53156497 is a prime.

It is a super-2 number, since 2×53156497² = 5651226346622018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53156417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26578248 + 26578249.

It is an arithmetic number, because the mean of its divisors is an integer number (26578249).

Almost surely, 2^53156497 is an apocalyptic number.

It is an amenable number.

53156497 is a deficient number, since it is larger than the sum of its proper divisors (1).

53156497 is an equidigital number, since it uses as much as digits as its factorization.

53156497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 40.

The square root of 53156497 is about 7290.8502247680. The cubic root of 53156497 is about 375.9979275010.

The spelling of 53156497 in words is "fifty-three million, one hundred fifty-six thousand, four hundred ninety-seven".