53920697 has 2 divisors, whose sum is σ = 53920698. Its totient is φ = 53920696.

The previous prime is 53920681. The next prime is 53920721. The reversal of 53920697 is 79602935.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35093776 + 18826921 = 5924^2 + 4339^2 .

It is a cyclic number.

It is not a de Polignac number, because 53920697 - 2⁴ = 53920681 is a prime.

It is not a weakly prime, because it can be changed into another prime (53920297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26960348 + 26960349.

It is an arithmetic number, because the mean of its divisors is an integer number (26960349).

Almost surely, 2^53920697 is an apocalyptic number.

It is an amenable number.

53920697 is a deficient number, since it is larger than the sum of its proper divisors (1).

53920697 is an equidigital number, since it uses as much as digits as its factorization.

53920697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 53920697 is about 7343.0713601326. The cubic root of 53920697 is about 377.7911955794.

The spelling of 53920697 in words is "fifty-three million, nine hundred twenty thousand, six hundred ninety-seven".