53497397 has 2 divisors, whose sum is σ = 53497398. Its totient is φ = 53497396.

The previous prime is 53497391. The next prime is 53497403. The reversal of 53497397 is 79379435.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (53497391) and next prime (53497403).

It can be written as a sum of positive squares in only one way, i.e., 47141956 + 6355441 = 6866^2 + 2521^2 .

It is a cyclic number.

It is not a de Polignac number, because 53497397 - 2¹² = 53493301 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 (53497391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26748698 + 26748699.

It is an arithmetic number, because the mean of its divisors is an integer number (26748699).

Almost surely, 2^53497397 is an apocalyptic number.

It is an amenable number.

53497397 is a deficient number, since it is larger than the sum of its proper divisors (1).

53497397 is an equidigital number, since it uses as much as digits as its factorization.

53497397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 714420, while the sum is 47.

The square root of 53497397 is about 7314.1914795827. The cubic root of 53497397 is about 376.7999910033.

The spelling of 53497397 in words is "fifty-three million, four hundred ninety-seven thousand, three hundred ninety-seven".