53190691 has 2 divisors, whose sum is σ = 53190692. Its totient is φ = 53190690.

The previous prime is 53190677. The next prime is 53190703. The reversal of 53190691 is 19609135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53190691 - 2²⁵ = 19636259 is a prime.

It is not a weakly prime, because it can be changed into another prime (53190091) 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, 26595345 + 26595346.

It is an arithmetic number, because the mean of its divisors is an integer number (26595346).

Almost surely, 2^53190691 is an apocalyptic number.

53190691 is a deficient number, since it is larger than the sum of its proper divisors (1).

53190691 is an equidigital number, since it uses as much as digits as its factorization.

53190691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 53190691 is about 7293.1948417686. The cubic root of 53190691 is about 376.0785329963.

The spelling of 53190691 in words is "fifty-three million, one hundred ninety thousand, six hundred ninety-one".