53745997 has 2 divisors, whose sum is σ = 53745998. Its totient is φ = 53745996.

The previous prime is 53745983. The next prime is 53746037. The reversal of 53745997 is 79954735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53275401 + 470596 = 7299^2 + 686^2 .

It is a cyclic number.

It is not a de Polignac number, because 53745997 - 2¹⁹ = 53221709 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 53745997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53745907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26872998 + 26872999.

It is an arithmetic number, because the mean of its divisors is an integer number (26872999).

Almost surely, 2^53745997 is an apocalyptic number.

It is an amenable number.

53745997 is a deficient number, since it is larger than the sum of its proper divisors (1).

53745997 is an equidigital number, since it uses as much as digits as its factorization.

53745997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1190700, while the sum is 49.

The square root of 53745997 is about 7331.1661418904. The cubic root of 53745997 is about 377.3827467957.

The spelling of 53745997 in words is "fifty-three million, seven hundred forty-five thousand, nine hundred ninety-seven".