53977597 has 2 divisors, whose sum is σ = 53977598. Its totient is φ = 53977596.

The previous prime is 53977591. The next prime is 53977631. The reversal of 53977597 is 79577935.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42068196 + 11909401 = 6486^2 + 3451^2 .

It is a cyclic number.

It is not a de Polignac number, because 53977597 - 2¹⁵ = 53944829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53977591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26988798 + 26988799.

It is an arithmetic number, because the mean of its divisors is an integer number (26988799).

Almost surely, 2^53977597 is an apocalyptic number.

It is an amenable number.

53977597 is a deficient number, since it is larger than the sum of its proper divisors (1).

53977597 is an equidigital number, since it uses as much as digits as its factorization.

53977597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2083725, while the sum is 52.

The square root of 53977597 is about 7346.9447391416. The cubic root of 53977597 is about 377.9240373471.

The spelling of 53977597 in words is "fifty-three million, nine hundred seventy-seven thousand, five hundred ninety-seven".