53747191 has 2 divisors, whose sum is σ = 53747192. Its totient is φ = 53747190.

The previous prime is 53747173. The next prime is 53747201. The reversal of 53747191 is 19174735.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53747191 - 2¹³ = 53738999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53747191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53747101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26873595 + 26873596.

It is an arithmetic number, because the mean of its divisors is an integer number (26873596).

Almost surely, 2^53747191 is an apocalyptic number.

53747191 is a deficient number, since it is larger than the sum of its proper divisors (1).

53747191 is an equidigital number, since it uses as much as digits as its factorization.

53747191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 37.

The square root of 53747191 is about 7331.2475745947. The cubic root of 53747191 is about 377.3855413707.

The spelling of 53747191 in words is "fifty-three million, seven hundred forty-seven thousand, one hundred ninety-one".