53658697 has 2 divisors, whose sum is σ = 53658698. Its totient is φ = 53658696.

The previous prime is 53658691. The next prime is 53658707. The reversal of 53658697 is 79685635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38142976 + 15515721 = 6176^2 + 3939^2 .

It is a cyclic number.

It is not a de Polignac number, because 53658697 - 2⁷ = 53658569 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53658697.

It is not a weakly prime, because it can be changed into another prime (53658691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26829348 + 26829349.

It is an arithmetic number, because the mean of its divisors is an integer number (26829349).

Almost surely, 2^53658697 is an apocalyptic number.

It is an amenable number.

53658697 is a deficient number, since it is larger than the sum of its proper divisors (1).

53658697 is an equidigital number, since it uses as much as digits as its factorization.

53658697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 49.

The square root of 53658697 is about 7325.2096898314. The cubic root of 53658697 is about 377.1783075839.

The spelling of 53658697 in words is "fifty-three million, six hundred fifty-eight thousand, six hundred ninety-seven".